CVE-2017-1000253

HIGHNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-09-09), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 11%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the "gap" between the stack and the binary.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
95.3%
KEV
⚠ Exploited

Published

October 5, 2017

Last Modified

April 21, 2026

Advisory Details (10)

Auto-updated May 19, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.2 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2017:2800
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.4 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2017:2799
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.5 Advanced Update Support and Red Hat Enterprise Linux 6.5 Telco Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2798
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.6 Advanced Update Support and Red Hat Enterprise Linux 6.6 Telco Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2797
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.7 Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2796
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.

https://access.redhat.com/errata/RHSA-2017:2795
redhat Patch Available

Affected: Red Hat Enterprise Linux 7.2 Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2794
redhat Patch Available

Affected: Red Hat Enterprise Linux 7.3 Extended Update Support.

https://access.redhat.com/errata/RHSA-2017:2793
generic
http://www.securitytracker.com/id/1039434
generic
http://www.securityfocus.com/bid/101010

Vendor Advisories for CVE-2017-1000253(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:2.6.18-423.el52017-09-26redhat
redhatkernel-0:3.10.0-327.59.3.el72017-09-26redhat
redhatkernel-0:3.10.0-514.32.3.el72017-09-26redhat
redhatkernel-0:2.6.18-348.34.2.el52017-09-26redhat
redhatkernel-0:2.6.32-696.10.3.el62017-09-26redhat
redhatkernel-0:2.6.32-358.84.1.el62017-09-26redhat
redhatkernel-0:2.6.32-220.76.1.el62017-09-26redhat
redhatkernel-0:2.6.32-431.85.1.el62017-09-26redhat
redhatkernel-0:2.6.32-504.63.3.el62017-09-26redhat
redhatkernel-0:2.6.32-573.48.1.el62017-09-26redhat
redhatkernel-0:3.10.0-693.el72017-08-01redhat

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(10)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 111× in last 7d / 437× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 799 total refreshes for this CVE.

  1. 2026-07-23 01:25 UTCEG score recompute
  2. 2026-07-23 00:07 UTCEG score recompute
  3. 2026-07-23 00:07 UTCVendor advisory
  4. 2026-07-23 00:07 UTCGHSA enrichment
  5. 2026-07-22 22:04 UTCEG score recompute
  6. 2026-07-22 20:19 UTCVendor advisory
  7. 2026-07-22 20:19 UTCGHSA enrichment
  8. 2026-07-22 19:40 UTCCISA KEV update
  9. 2026-07-22 16:31 UTCEG score recompute
  10. 2026-07-22 16:31 UTCVendor advisory
  11. 2026-07-22 16:30 UTCGHSA enrichment
  12. 2026-07-22 14:04 UTCEPSS rescore
  13. 2026-07-22 12:42 UTCVendor advisory
  14. 2026-07-22 12:42 UTCGHSA enrichment
  15. 2026-07-22 08:54 UTCVendor advisory
  16. 2026-07-22 08:54 UTCGHSA enrichment
  17. 2026-07-22 05:06 UTCVendor advisory
  18. 2026-07-22 05:06 UTCGHSA enrichment
  19. 2026-07-22 00:45 UTCVendor advisory
  20. 2026-07-22 00:45 UTCGHSA enrichment
  21. 2026-07-21 19:40 UTCVendor advisory
  22. 2026-07-21 19:39 UTCGHSA enrichment
  23. 2026-07-21 15:49 UTCEG score recompute
  24. 2026-07-21 15:49 UTCVendor advisory
  25. 2026-07-21 15:49 UTCGHSA enrichment
Show 75 more
  1. 2026-07-21 15:21 UTCEPSS rescore
  2. 2026-07-21 15:21 UTCEPSS rescore
  3. 2026-07-21 14:37 UTCCISA KEV update
  4. 2026-07-21 12:01 UTCVendor advisory
  5. 2026-07-21 12:01 UTCGHSA enrichment
  6. 2026-07-21 08:06 UTCVendor advisory
  7. 2026-07-21 08:06 UTCGHSA enrichment
  8. 2026-07-21 04:19 UTCVendor advisory
  9. 2026-07-21 04:18 UTCGHSA enrichment
  10. 2026-07-21 00:29 UTCVendor advisory
  11. 2026-07-21 00:29 UTCGHSA enrichment
  12. 2026-07-20 20:41 UTCEG score recompute
  13. 2026-07-20 20:41 UTCVendor advisory
  14. 2026-07-20 20:40 UTCGHSA enrichment
  15. 2026-07-20 17:04 UTCEPSS rescore
  16. 2026-07-20 16:50 UTCVendor advisory
  17. 2026-07-20 16:50 UTCGHSA enrichment
  18. 2026-07-20 13:02 UTCVendor advisory
  19. 2026-07-20 13:02 UTCGHSA enrichment
  20. 2026-07-20 09:14 UTCVendor advisory
  21. 2026-07-20 09:14 UTCGHSA enrichment
  22. 2026-07-20 05:26 UTCVendor advisory
  23. 2026-07-20 05:26 UTCGHSA enrichment
  24. 2026-07-20 01:39 UTCVendor advisory
  25. 2026-07-20 01:39 UTCGHSA enrichment
  26. 2026-07-19 21:50 UTCVendor advisory
  27. 2026-07-19 21:50 UTCGHSA enrichment
  28. 2026-07-19 18:03 UTCEG score recompute
  29. 2026-07-19 18:03 UTCVendor advisory
  30. 2026-07-19 18:03 UTCGHSA enrichment
  31. 2026-07-19 14:28 UTCEPSS rescore
  32. 2026-07-19 14:28 UTCEPSS rescore
  33. 2026-07-19 14:15 UTCVendor advisory
  34. 2026-07-19 14:15 UTCGHSA enrichment
  35. 2026-07-19 10:27 UTCVendor advisory
  36. 2026-07-19 10:27 UTCGHSA enrichment
  37. 2026-07-19 06:39 UTCVendor advisory
  38. 2026-07-19 06:39 UTCGHSA enrichment
  39. 2026-07-19 02:51 UTCEG score recompute
  40. 2026-07-19 02:51 UTCVendor advisory
  41. 2026-07-19 02:51 UTCGHSA enrichment
  42. 2026-07-19 02:26 UTCEPSS rescore
  43. 2026-07-19 02:26 UTCEPSS rescore
  44. 2026-07-18 23:03 UTCVendor advisory
  45. 2026-07-18 23:02 UTCGHSA enrichment
  46. 2026-07-18 19:14 UTCVendor advisory
  47. 2026-07-18 19:14 UTCGHSA enrichment
  48. 2026-07-18 15:25 UTCVendor advisory
  49. 2026-07-18 15:24 UTCGHSA enrichment
  50. 2026-07-18 11:36 UTCEG score recompute
  51. 2026-07-18 11:36 UTCVendor advisory
  52. 2026-07-18 11:36 UTCGHSA enrichment
  53. 2026-07-18 10:00 UTCEPSS rescore
  54. 2026-07-18 10:00 UTCEPSS rescore
  55. 2026-07-18 07:48 UTCVendor advisory
  56. 2026-07-18 07:48 UTCGHSA enrichment
  57. 2026-07-18 04:00 UTCVendor advisory
  58. 2026-07-18 04:00 UTCGHSA enrichment
  59. 2026-07-18 00:12 UTCVendor advisory
  60. 2026-07-18 00:12 UTCGHSA enrichment
  61. 2026-07-17 20:24 UTCVendor advisory
  62. 2026-07-17 20:24 UTCGHSA enrichment
  63. 2026-07-17 16:37 UTCVendor advisory
  64. 2026-07-17 16:36 UTCGHSA enrichment
  65. 2026-07-17 12:48 UTCVendor advisory
  66. 2026-07-17 12:48 UTCGHSA enrichment
  67. 2026-07-17 09:00 UTCEG score recompute
  68. 2026-07-17 09:00 UTCVendor advisory
  69. 2026-07-17 09:00 UTCGHSA enrichment
  70. 2026-07-17 05:12 UTCVendor advisory
  71. 2026-07-17 05:12 UTCGHSA enrichment
  72. 2026-07-17 01:25 UTCVendor advisory
  73. 2026-07-17 01:24 UTCGHSA enrichment
  74. 2026-07-16 21:36 UTCVendor advisory
  75. 2026-07-16 21:36 UTCGHSA enrichment

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCsxlmnwb/CVE-2017-1000253
    First seen Oct 16, 2022

    Linux Kernel 3.10.0-514.21.2.el7.x86_64 / 3.10.0-514.26.1.el7.x86_64 (CentOS 7) - SUID Position Independent Executable 'PIE' Local Privilege Escalation

    Open source ↗
  • GitHub PoCRicterZ/PIE-Stack-Clash-CVE-2017-1000253
    First seen Jun 18, 2018

    Demo-ing CVE-2017-1000253 in a container

    Open source ↗
  • Exploit-DBEDB-42887
    First seen Sep 26, 2017

    Linux Kernel 3.10.0-514.21.2.el7.x86_64 / 3.10.0-514.26.1.el7.x86_64 (CentOS 7) - SUID Position Independent Executable 'PIE' Local Privilege Escalation

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2017-1000253?
CVE-2017-1000253 is a high vulnerability published on October 5, 2017. Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux…
When was CVE-2017-1000253 disclosed?
CVE-2017-1000253 was first published in the National Vulnerability Database on October 5, 2017, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-1000253 actively exploited?
Yes. CISA added CVE-2017-1000253 to the Known Exploited Vulnerabilities catalog on September 9, 2024, affecting Linux Kernel. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2017-1000253?
CVE-2017-1000253 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2017-1000253?
CVE-2017-1000253 affects Linux Kernel. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2017-1000253?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-1000253, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2017-1000253

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