CVE-2024-31081

HIGHNVD 7.37.3
EchelonGraph scoreMEDIUM confidence

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

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2024-04-04. NVD baseline CVSS 7.3; 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
7.3EG
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: 0.5%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIPassiveGrabDevice() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

CVSS v3
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
33
EG Risk 33/100

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)
Severity73% × 45%
Impact severity (EG Severity): CVSS 7.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
0.5%
EPSS %ILE
43rd
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 (7.3): severity, escalated by confirmed exploitation. This CVE's 7.3 is its impact severity (EG Severity), not escalated.

EG Severity
7.3 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-20). 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

April 4, 2024

Last Modified

April 15, 2026

References (24)

15 of 24 shown · show the other 9

Patch Availability(17)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuxwayland (2:1.18.4-0ubuntu0.12+esm12) @ xenial2026-10-20ubuntu
redhattigervnc-0:1.1.0-25.el6_10.132025-08-04redhat
redhatxorg-x11-server-Xwayland-0:23.2.7-1.el92024-11-12redhat
redhatxorg-x11-server-0:1.20.11-26.el92024-11-12redhat
redhatxorg-x11-server-Xwayland-0:21.1.3-16.el8_102024-05-23redhat
redhattigervnc-0:1.13.1-10.el8_102024-05-22redhat
redhatxorg-x11-server-0:1.20.11-23.el8_102024-05-22redhat
redhattigervnc-0:1.13.1-8.el9_4.32024-04-30redhat
redhattigervnc-0:1.8.0-33.el7_92024-04-29redhat
redhattigervnc-0:1.12.0-15.el8_8.102024-04-24redhat
redhattigervnc-0:1.11.0-8.el8_4.102024-04-24redhat
redhattigervnc-0:1.12.0-14.el9_2.82024-04-24redhat
redhattigervnc-0:1.9.0-15.el8_2.112024-04-24redhat
redhattigervnc-0:1.12.0-6.el8_6.112024-04-24redhat
redhattigervnc-0:1.13.1-2.el8_9.102024-04-24redhat
redhattigervnc-0:1.11.0-22.el9_0.112024-04-24redhat
redhatxorg-x11-server-0:1.20.4-29.el7_92024-04-11redhat

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

(8 across 5 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
xorg-server2:21.1.7-3 ... 2:21.1.7-3+deb12u6 (7 versions)
  • every version up to 2:21.1.7-3+deb12u7: fixed in 2:21.1.7-3+deb12u7
—
xwayland2:22.1.9-1 ... 2:24.1.9-1 (24 versions)
  • every version on: no fix on record
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
xorg-server—
  • every version up to 2:21.1.11-3: fixed in 2:21.1.11-3
—
xwayland—
  • every version up to 2:23.2.6-1: fixed in 2:23.2.6-1
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
xorg-server—
  • every version up to 2:21.1.11-3: fixed in 2:21.1.11-3
—
xwayland—
  • every version up to 2:23.2.6-1: fixed in 2:23.2.6-1
—
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
xorg-server2:1.20.4-1 ... 2:1.20.4-1+deb10u9 (14 versions)
  • every version up to 2:1.20.4-1+deb10u14: fixed in 2:1.20.4-1+deb10u14
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
xorg-server2:1.20.11-1 ... 2:1.20.11-1+deb11u9 (13 versions)
  • every version up to 2:1.20.11-1+deb11u13: fixed in 2:1.20.11-1+deb11u13
—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

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 11× in last 7d / 38× 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 92 of 229 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. 8 repeat rows among the latest 100 are merged into the row they repeat. The 137 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  3. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  4. 2026-10-20 20:06 UTCEG score recompute
  5. 2026-10-20 20:06 UTCVendor advisory
  6. 2026-10-20 20:05 UTCGHSA enrichmentGHSA-3fpg-j8cw-vcjq · GitHub severity HIGH · GitHub CVSS 7.3
  7. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  8. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  9. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-10-18 07:18 UTCEG score recompute
  11. 2026-10-17 16:30 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  16. 2026-10-12 17:56 UTCEG score recompute
  17. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-11 21:20 UTCEG score recompute
  19. 2026-10-11 16:14 UTCEG score recompute
  20. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-10-08 17:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  25. 2026-10-07 14:35 UTCOSV refresh
Show 67 more
  1. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  3. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  4. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  6. 2026-09-30 19:42 UTCEG score recompute
  7. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-09-27 13:43 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-09-26 00:23 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-09-22 14:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  16. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  17. 2026-09-19 15:40 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-09-17 20:50 UTCOSV refresh
  20. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  25. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  26. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  27. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  28. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  29. 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  30. 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  31. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  32. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  33. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  34. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  35. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  36. 2026-08-29 21:13 UTCOSV refresh
  37. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  38. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  39. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  40. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  41. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  42. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  43. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  44. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  45. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  46. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  47. 2026-08-17 13:45 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  48. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  49. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  50. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  51. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  52. 2026-08-13 07:43 UTCOSV refresh
  53. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  54. 2026-08-11 13:40 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  55. 2026-08-10 23:58 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  56. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  57. 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  58. 2026-08-07 16:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  59. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  60. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  61. 2026-08-04 15:08 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  62. 2026-08-04 10:36 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  63. 2026-08-03 10:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  64. 2026-08-02 02:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  65. 2026-08-01 04:14 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  66. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  67. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.5% · 40th percentile

Frequently asked(5)

What is CVE-2024-31081?
CVE-2024-31081 is a high-severity vulnerability; its CVE record was published on April 4, 2024. A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIPassiveGrabDevice() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a…
When was CVE-2024-31081 made public?
CVE-2024-31081 was made public on April 3, 2024: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on April 4, 2024. EchelonGraph's copy of the record carries a last-modified date of April 15, 2026; the record at its source may have been updated since.
Is CVE-2024-31081 actively exploited?
CVE-2024-31081 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-31081?
CVE-2024-31081 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2024-31081?
A fix for CVE-2024-31081 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-31081 are linked in the Vendor Advisories panel on this page.

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