CVE-2022-35411

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-07-09. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2022-6297 (ENISA EUVD) · GHSA-8rq8-f485-7v8x (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 47%CVSS: 9.8Exploit: Public PoCExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

rpc.py through 0.6.0 allows Remote Code Execution because an unpickle occurs when the "serializer: pickle" HTTP header is sent. In other words, although JSON (not Pickle) is the default data format, an unauthenticated client can cause the data to be processed with unpickle.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
63
EG Risk 63/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation47% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.
EPSS PROB
47%
EPSS %ILE
98th
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
47% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.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, Track* at medium and Attend at high mission impact.

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.

Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

July 8, 2022

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Oct 10, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
Web page

GitHub - ehtec/rpcpy-exploit: Unauthenticated Remote Code Execution for rpc.py server · GitHub

https://github.com/ehtec/rpcpy-exploit
GitHub commit

commit 491e7a841ed9 (abersheeran/rpc.py)

Fix landed in abersheeran/rpc.py commit 491e7a841ed9 — awaiting tagged release

https://github.com/abersheeran/rpc.py/commit/491e7a841ed9a754796d6ab047a9fb16e23bf8bd

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
piprpc.py—ghsa

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

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
rpc-py0.4.2, 0.4.3, 0.5.0, 0.5.1, 0.6.0
  • 0.4.2 through 0.6.0: no fix on record
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 65× 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 99 of 200 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 101 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 04:39 UTCEG score recompute
  2. 2026-11-02 04:39 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-11-01 04:49 UTCEG score recompute
  4. 2026-11-01 04:49 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-31 16:29 UTCEPSS rescoreEPSS 47% · 98th percentile
  6. 2026-10-31 04:59 UTCEG score recompute
  7. 2026-10-31 04:59 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-10-30 16:30 UTCEPSS rescoreEPSS 47% · 98th percentile
  9. 2026-10-30 05:09 UTCEG score recompute
  10. 2026-10-30 05:09 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-29 16:29 UTCEPSS rescoreEPSS 47% · 98th percentile
  12. 2026-10-29 05:20 UTCEG score recompute
  13. 2026-10-29 05:19 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-28 16:28 UTCEPSS rescoreEPSS 47% · 98th percentile
  15. 2026-10-28 05:29 UTCEG score recompute
  16. 2026-10-28 05:29 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-27 16:28 UTCEPSS rescoreEPSS 47% · 98th percentile
  18. 2026-10-27 05:40 UTCEG score recompute
  19. 2026-10-27 05:40 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-26 01:46 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-25 18:05 UTCEG score recompute
  22. 2026-10-25 16:29 UTCEPSS rescoreEPSS 46% · 98th percentile
  23. 2026-10-25 01:55 UTCEG score recompute
  24. 2026-10-25 01:55 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-24 16:29 UTCEPSS rescoreEPSS 46% · 98th percentile
Show 74 more
  1. 2026-10-24 02:06 UTCEG score recompute
  2. 2026-10-24 02:05 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-23 16:28 UTCEPSS rescoreEPSS 46% · 98th percentile
  4. 2026-10-23 02:15 UTCEG score recompute
  5. 2026-10-23 02:15 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-22 16:30 UTCEPSS rescoreEPSS 46% · 98th percentile
  7. 2026-10-22 02:23 UTCEG score recompute
  8. 2026-10-22 02:22 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-21 16:29 UTCEPSS rescoreEPSS 46% · 98th percentile
  10. 2026-10-21 02:32 UTCEG score recompute
  11. 2026-10-21 02:32 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-10-20 16:29 UTCEPSS rescoreEPSS 46% · 98th percentile
  13. 2026-10-20 02:41 UTCEG score recompute
  14. 2026-10-20 02:41 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-19 16:28 UTCEPSS rescoreEPSS 46% · 98th percentile
  16. 2026-10-19 02:18 UTCEG score recompute
  17. 2026-10-19 02:17 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-18 08:32 UTCEG score recompute
  19. 2026-10-18 02:24 UTCEG score recompute
  20. 2026-10-18 02:24 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-17 02:32 UTCEG score recompute
  22. 2026-10-17 02:32 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-16 16:35 UTCEPSS rescoreEPSS 46% · 98th percentile
  24. 2026-10-16 02:40 UTCEG score recompute
  25. 2026-10-16 02:40 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-10-15 16:28 UTCEPSS rescoreEPSS 46% · 98th percentile
  27. 2026-10-14 22:41 UTCEG score recompute
  28. 2026-10-14 22:40 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  29. 2026-10-14 16:29 UTCEPSS rescoreEPSS 46% · 98th percentile
  30. 2026-10-13 18:17 UTCEG score recompute
  31. 2026-10-13 18:17 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-10-13 16:29 UTCEPSS rescoreEPSS 46% · 98th percentile
  33. 2026-10-12 18:22 UTCEG score recompute
  34. 2026-10-12 18:22 UTCGHSA enrichmentGHSA-8rq8-f485-7v8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  35. 2026-10-11 23:15 UTCEG score recompute
  36. 2026-10-11 13:44 UTCEPSS rescoreEPSS 46% · 98th percentile
  37. 2026-10-09 20:04 UTCEPSS rescoreEPSS 46% · 98th percentile
  38. 2026-10-08 16:40 UTCEPSS rescoreEPSS 46% · 98th percentile
  39. 2026-10-07 23:45 UTCEPSS rescoreEPSS 46% · 98th percentile
  40. 2026-10-06 15:14 UTCEPSS rescoreEPSS 46% · 98th percentile
  41. 2026-10-03 14:23 UTCEPSS rescoreEPSS 46% · 98th percentile
  42. 2026-10-02 16:23 UTCEPSS rescoreEPSS 46% · 98th percentile
  43. 2026-10-01 19:47 UTCEPSS rescoreEPSS 46% · 98th percentile
  44. 2026-09-30 15:58 UTCEG score recompute
  45. 2026-09-30 15:00 UTCEPSS rescoreEPSS 46% · 98th percentile
  46. 2026-09-27 13:42 UTCEPSS rescoreEPSS 46% · 98th percentile
  47. 2026-09-24 17:46 UTCOSV refresh
  48. 2026-09-24 14:00 UTCEPSS rescoreEPSS 46% · 98th percentile
  49. 2026-09-22 14:45 UTCEPSS rescoreEPSS 46% · 98th percentile
  50. 2026-09-19 15:38 UTCEPSS rescoreEPSS 46% · 98th percentile
  51. 2026-09-17 19:24 UTCEPSS rescoreEPSS 46% · 98th percentile
  52. 2026-09-16 14:05 UTCEPSS rescoreEPSS 46% · 98th percentile
  53. 2026-09-15 03:07 UTCEPSS rescoreEPSS 46% · 98th percentile
  54. 2026-09-12 14:57 UTCEPSS rescoreEPSS 46% · 98th percentile
  55. 2026-09-11 14:50 UTCEPSS rescoreEPSS 46% · 98th percentile
  56. 2026-09-11 09:33 UTCEPSS rescoreEPSS 46% · 98th percentile
  57. 2026-09-06 13:45 UTCEPSS rescoreEPSS 46% · 98th percentile
  58. 2026-09-05 15:25 UTCEPSS rescoreEPSS 46% · 98th percentile
  59. 2026-09-05 09:48 UTCOSV refresh
  60. 2026-09-04 13:57 UTCEPSS rescoreEPSS 46% · 98th percentile
  61. 2026-09-02 14:09 UTCEPSS rescoreEPSS 46% · 98th percentile
  62. 2026-09-01 13:51 UTCEPSS rescoreEPSS 46% · 98th percentile
  63. 2026-08-30 19:14 UTCEPSS rescoreEPSS 46% · 98th percentile
  64. 2026-08-30 01:19 UTCEPSS rescoreEPSS 46% · 98th percentile
  65. 2026-08-28 21:38 UTCEPSS rescoreEPSS 46% · 98th percentile
  66. 2026-08-26 14:43 UTCEPSS rescoreEPSS 46% · 98th percentile
  67. 2026-08-25 13:46 UTCEPSS rescoreEPSS 46% · 98th percentile
  68. 2026-08-24 14:13 UTCEPSS rescoreEPSS 46% · 98th percentile
  69. 2026-08-21 23:46 UTCEPSS rescoreEPSS 46% · 98th percentile
  70. 2026-08-20 22:52 UTCEPSS rescoreEPSS 46% · 98th percentile
  71. 2026-08-19 17:01 UTCEPSS rescoreEPSS 46% · 98th percentile
  72. 2026-08-18 20:10 UTCOSV refresh
  73. 2026-08-18 13:45 UTCEPSS rescoreEPSS 46% · 98th percentile
  74. 2026-08-17 13:44 UTCEPSS rescoreEPSS 46% · 98th percentile

Publicly available exploits

(2 references)

Public exploit code is referenced for this CVE (1 Exploit-DB entry, 1 GitHub PoC). The fix is not yet in a release, so defenders should restrict or isolate affected systems accordingly until it ships.

  • GitHub PoCCSpanias/rpc-rce.py
    Published Jul 28, 2025

    Exploit for CVE-2022-35411 — Unauthenticated RCE in rpc.py (<= 0.6.0)

    Open source ↗
  • Exploit-DBEDB-50983
    Published Jul 29, 2022

    rpc.py 0.6.0 - Remote Code Execution (RCE)

    Open source ↗

Frequently asked(5)

What is CVE-2022-35411?
CVE-2022-35411 is a critical-severity vulnerability; its CVE record was published on July 8, 2022. rpc.py through 0.6.0 allows Remote Code Execution because an unpickle occurs when the "serializer: pickle" HTTP header is sent. In other words, although JSON (not Pickle) is the default data format, an unauthenticated client can cause the data to be processed with unpickle.
When was the CVE record for CVE-2022-35411 published?
The CVE record for CVE-2022-35411 was published on July 8, 2022. 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 November 21, 2024; the record at its source may have been updated since.
Is CVE-2022-35411 actively exploited?
CVE-2022-35411 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 47% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-35411?
CVE-2022-35411 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-35411?
An upstream fix for CVE-2022-35411 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-35411

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