CVE-2023-52975

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-03-27. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week

Also known asEUVD-2023-59745 (ENISA EUVD) · GHSA-vm8w-gf89-48f9 (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress

Bug report and analysis from Ding Hui.

During iSCSI session logout, if another task accesses the shost ipaddress attr, we can get a KASAN UAF report like this:

[ 276.942144] BUG: KASAN: use-after-free in _raw_spin_lock_bh+0x78/0xe0 [ 276.942535] Write of size 4 at addr ffff8881053b45b8 by task cat/4088 [ 276.943511] CPU: 2 PID: 4088 Comm: cat Tainted: G E 6.1.0-rc8+ #3 [ 276.943997] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 [ 276.944470] Call Trace: [ 276.944943] [ 276.945397] dump_stack_lvl+0x34/0x48 [ 276.945887] print_address_description.constprop.0+0x86/0x1e7 [ 276.946421] print_report+0x36/0x4f [ 276.947358] kasan_report+0xad/0x130 [ 276.948234] kasan_check_range+0x35/0x1c0 [ 276.948674] _raw_spin_lock_bh+0x78/0xe0 [ 276.949989] iscsi_sw_tcp_host_get_param+0xad/0x2e0 [iscsi_tcp] [ 276.951765] show_host_param_ISCSI_HOST_PARAM_IPADDRESS+0xe9/0x130 [scsi_transport_iscsi] [ 276.952185] dev_attr_show+0x3f/0x80 [ 276.953005] sysfs_kf_seq_show+0x1fb/0x3e0 [ 276.953401] seq_read_iter+0x402/0x1020 [ 276.954260] vfs_read+0x532/0x7b0 [ 276.955113] ksys_read+0xed/0x1c0 [ 276.955952] do_syscall_64+0x38/0x90 [ 276.956347] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 276.956769] RIP: 0033:0x7f5d3a679222 [ 276.957161] Code: c0 e9 b2 fe ff ff 50 48 8d 3d 32 c0 0b 00 e8 a5 fe 01 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24 [ 276.958009] RSP: 002b:00007ffc864d16a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 276.958431] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f5d3a679222 [ 276.958857] RDX: 0000000000020000 RSI: 00007f5d3a4fe000 RDI: 0000000000000003 [ 276.959281] RBP: 00007f5d3a4fe000 R08: 00000000ffffffff R09: 0000000000000000 [ 276.959682] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000020000 [ 276.960126] R13: 0000000000000003 R14: 0000000000000000 R15: 0000557a26dada58 [ 276.960536] [ 276.961357] Allocated by task 2209: [ 276.961756] kasan_save_stack+0x1e/0x40 [ 276.962170] kasan_set_track+0x21/0x30 [ 276.962557] __kasan_kmalloc+0x7e/0x90 [ 276.962923] __kmalloc+0x5b/0x140 [ 276.963308] iscsi_alloc_session+0x28/0x840 [scsi_transport_iscsi] [ 276.963712] iscsi_session_setup+0xda/0xba0 [libiscsi] [ 276.964078] iscsi_sw_tcp_session_create+0x1fd/0x330 [iscsi_tcp] [ 276.964431] iscsi_if_create_session.isra.0+0x50/0x260 [scsi_transport_iscsi] [ 276.964793] iscsi_if_recv_msg+0xc5a/0x2660 [scsi_transport_iscsi] [ 276.965153] iscsi_if_rx+0x198/0x4b0 [scsi_transport_iscsi] [ 276.965546] netlink_unicast+0x4d5/0x7b0 [ 276.965905] netlink_sendmsg+0x78d/0xc30 [ 276.966236] sock_sendmsg+0xe5/0x120 [ 276.966576] ____sys_sendmsg+0x5fe/0x860 [ 276.966923] ___sys_sendmsg+0xe0/0x170 [ 276.967300] __sys_sendmsg+0xc8/0x170 [ 276.967666] do_syscall_64+0x38/0x90 [ 276.968028] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 276.968773] Freed by task 2209: [ 276.969111] kasan_save_stack+0x1e/0x40 [ 276.969449] kasan_set_track+0x21/0x30 [ 276.969789] kasan_save_free_info+0x2a/0x50 [ 276.970146] __kasan_slab_free+0x106/0x190 [ 276.970470] __kmem_cache_free+0x133/0x270 [ 276.970816] device_release+0x98/0x210 [ 276.971145] kobject_cleanup+0x101/0x360 [ 276.971462] iscsi_session_teardown+0x3fb/0x530 [libiscsi] [ 276.971775] iscsi_sw_tcp_session_destroy+0xd8/0x130 [iscsi_tcp] [ 276.972143] iscsi_if_recv_msg+0x1bf1/0x2660 [scsi_transport_iscsi] [ 276.972485] iscsi_if_rx+0x198/0x4b0 [scsi_transport_iscsi] [ 276.972808] netlink_unicast+0x4d5/0x7b0 [ 276.973201] netlink_sendmsg+0x78d/0xc30 [ 276.973544] sock_sendmsg+0xe5/0x120 [ 276.973864] ____sys_sendmsg+0x5fe/0x860 [ 276.974248] ___sys_ ---truncated---

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
23rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 27, 2025

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated Aug 5, 2026
Patch available.
Web page

scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6f1d64b13097e85abda0f91b5638000afc5f9a06
Web page

scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8859687f5b242c0b057461df0a9ff51d5500783b
Web page

scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/17b738590b97fb3fc287289971d1519ff9b875a1
Web page

scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0af745fddefbd56198f4f35eb309215ee5f9e21e

Patch Availability(19)

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (48 versions)
  • every version up to 5.10.249-1: fixed in 5.10.249-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.11-1: fixed in 6.1.11-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.11-1: fixed in 6.1.11-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.1.11-1: fixed in 6.1.11-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(15)

Data Freshness Timeline

(refreshed 10× in last 7d / 40× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 93 of 204 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 7 repeat rows among the latest 100 are merged into the row they repeat. The 111 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:40 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  2. 2026-11-01 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  3. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  4. 2026-10-30 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  5. 2026-10-29 16:30 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  6. 2026-10-28 16:29 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  7. 2026-10-28 15:05 UTCEG score recompute
  8. 2026-10-28 15:05 UTCVendor advisory
  9. 2026-10-28 15:04 UTCGHSA enrichmentGHSA-vm8w-gf89-48f9 · GitHub severity HIGH · GitHub CVSS 7.8
  10. 2026-10-27 16:29 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  11. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-10-25 17:28 UTCEG score recompute
  13. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  14. 2026-10-24 16:29 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  15. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  16. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  17. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  18. 2026-10-20 21:16 UTCEG score recompute
  19. 2026-10-20 21:16 UTCVendor advisory
  20. 2026-10-20 21:16 UTCGHSA enrichmentGHSA-vm8w-gf89-48f9 · GitHub severity HIGH · GitHub CVSS 7.8
  21. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  22. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  23. 2026-10-19 14:55 UTCOSV refresh
  24. 2026-10-18 07:41 UTCEG score recompute
  25. 2026-10-17 16:30 UTCEPSS rescoreEPSS 0.3% · 21st percentile
Show 68 more
  1. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  2. 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  3. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  4. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  5. 2026-10-12 18:13 UTCEG score recompute
  6. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  7. 2026-10-11 21:38 UTCEG score recompute
  8. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  10. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  11. 2026-10-08 17:06 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  12. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  13. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  14. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  15. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  16. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  18. 2026-09-30 16:37 UTCEG score recompute
  19. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  21. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  22. 2026-09-26 21:11 UTCOSV refresh
  23. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  24. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  25. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  26. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  27. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  28. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  29. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  30. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  31. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  32. 2026-09-12 14:58 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  33. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  34. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  35. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  36. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  37. 2026-09-07 06:48 UTCOSV refresh
  38. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  39. 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  40. 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  41. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  42. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  43. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  44. 2026-09-01 04:36 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  45. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  46. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  47. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  48. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  49. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  50. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  51. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  52. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  53. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  54. 2026-08-20 16:31 UTCOSV refresh
  55. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  56. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  57. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  58. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  59. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  60. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  61. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  62. 2026-08-11 13:40 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  63. 2026-08-10 23:58 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  64. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  65. 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  66. 2026-08-07 16:25 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  67. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  68. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.3% · 17th percentile

Frequently asked(5)

What is CVE-2023-52975?
CVE-2023-52975 is a high-severity vulnerability; its CVE record was published on March 27, 2025. In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress Bug report and analysis from Ding Hui. During iSCSI session logout, if another task accesses the shost ipaddress attr, we can get a KASAN UAF report like…
When was the CVE record for CVE-2023-52975 published?
The CVE record for CVE-2023-52975 was published on March 27, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 5, 2026; the record at its source may have been updated since.
Is CVE-2023-52975 actively exploited?
CVE-2023-52975 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-52975?
CVE-2023-52975 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2023-52975?
A fix for CVE-2023-52975 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-52975 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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