CVE-2026-78465

HIGHPre-NVD 7.07.0
EchelonGraph scoreMEDIUM confidence

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

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-08-24. A secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-64935 (ENISA EUVD) · GHSA-944m-78f8-q7cr (GitHub Security Advisories)Source: ENISA EUVD

7.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.0Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large dimensions, the calculation exceeds the 32-bit integer limit and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when the plugin subsequently writes image data into the undersized buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

CVSS v3
7.0
EG Score
7.0HIGHmedium confidence
EG Risk
48
EG Risk 48/100

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)
Severity70% × 45%
Impact severity (EG Severity): CVSS 7.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
20th
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 (7.0): severity, escalated by confirmed exploitation. This CVE's 7.0 is its impact severity (EG Severity), not escalated.

EG Severity
7.0 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 2026-10-28). 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.Each input and its source: 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.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (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.

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

August 24, 2026

Last Modified

October 14, 2026

Advisory Details (3)

Auto-updated Aug 24, 2026
Patch available. Sources: redhat.
Web page

Integer overflow in PCX loader (planes=4) leads to heap overflow on 32-bit (CWE-190, CWE-787) (#16578) · Issues · GNOME / GIMP · GitLab

https://gitlab.gnome.org/GNOME/gimp/-/work_items/16578
Red Hat

2522057 – (CVE-2026-78465) CVE-2026-78465 gimp: integer overflow in PCX loader (planes=4) leads to heap overflow on 32-bit

https://bugzilla.redhat.com/show_bug.cgi?id=2522057
Red HatMentions a patch (unverified)

CVE-2026-78465 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-78465

Vendor Advisories for CVE-2026-78465(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
gimp2.10.34-1 ... 3.2.6-1 (57 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
gimp3.0.4-3 ... 3.0.4-3+deb13u9 (11 versions)
  • every version up to 3.0.4-3+deb13u11: fixed in 3.0.4-3+deb13u11
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
gimp3.0.4-3 ... 3.2.4-3 (19 versions)
  • every version up to 3.2.6-1: fixed in 3.2.6-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× 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 100 of 210 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. None are among the latest 100 rows. The 110 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  2. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  3. 2026-10-28 22:55 UTCEG score recompute
  4. 2026-10-28 22:55 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  5. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  6. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  7. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-10-25 14:00 UTCEG score recompute
  10. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  13. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-10-21 15:09 UTCEG score recompute
  15. 2026-10-21 15:09 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  16. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  17. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  19. 2026-10-18 03:11 UTCEG score recompute
  20. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  22. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-10-14 13:32 UTCEG score recompute
  25. 2026-10-14 13:32 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
Show 75 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-10-13 06:49 UTCEG score recompute
  3. 2026-10-13 06:48 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  5. 2026-10-12 15:36 UTCEG score recompute
  6. 2026-10-11 19:22 UTCEG score recompute
  7. 2026-10-11 16:38 UTCEG score recompute
  8. 2026-10-11 13:57 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  11. 2026-10-10 12:37 UTCEG score recompute
  12. 2026-10-10 12:37 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  14. 2026-10-09 04:52 UTCEG score recompute
  15. 2026-10-09 04:52 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  16. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-10-08 03:57 UTCEG score recompute
  18. 2026-10-08 03:57 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  20. 2026-10-07 04:46 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  21. 2026-10-06 16:11 UTCEG score recompute
  22. 2026-10-06 16:11 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  23. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  24. 2026-10-06 02:50 UTCEG score recompute
  25. 2026-10-06 02:50 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  26. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  27. 2026-10-05 09:22 UTCEG score recompute
  28. 2026-10-05 09:22 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  29. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  30. 2026-10-04 20:42 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  31. 2026-10-04 05:05 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  32. 2026-10-03 16:32 UTCEG score recompute
  33. 2026-10-03 16:32 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  34. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  35. 2026-10-02 22:33 UTCEG score recompute
  36. 2026-10-02 22:33 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  37. 2026-10-02 09:58 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  38. 2026-10-01 21:25 UTCEG score recompute
  39. 2026-10-01 21:25 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  40. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  41. 2026-10-01 08:51 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  42. 2026-09-30 20:18 UTCEG score recompute
  43. 2026-09-30 20:18 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  44. 2026-09-30 07:11 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  45. 2026-09-29 16:10 UTCEG score recompute
  46. 2026-09-29 16:10 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  47. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  48. 2026-09-29 03:18 UTCEG score recompute
  49. 2026-09-29 03:18 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  50. 2026-09-28 14:36 UTCEG score recompute
  51. 2026-09-28 14:36 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  52. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  53. 2026-09-28 01:58 UTCEG score recompute
  54. 2026-09-28 01:58 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  55. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  56. 2026-09-27 13:10 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  57. 2026-09-27 00:37 UTCEG score recompute
  58. 2026-09-27 00:37 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  59. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  60. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  61. 2026-09-25 11:47 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  62. 2026-09-24 22:18 UTCEG score recompute
  63. 2026-09-24 22:18 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  64. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  65. 2026-09-24 09:10 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  66. 2026-09-23 20:36 UTCEG score recompute
  67. 2026-09-23 20:36 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  68. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  69. 2026-09-23 08:02 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  70. 2026-09-22 19:29 UTCEG score recompute
  71. 2026-09-22 19:29 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  72. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  73. 2026-09-22 04:39 UTCEG score recompute
  74. 2026-09-22 04:39 UTCGHSA enrichmentGHSA-944m-78f8-q7cr · GitHub severity HIGH · GitHub CVSS 7.0
  75. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 14th percentile

Frequently asked(5)

What is CVE-2026-78465?
CVE-2026-78465 is a high-severity vulnerability; its CVE record was published on August 24, 2026. A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large…
When was CVE-2026-78465 made public?
CVE-2026-78465 was made public on July 24, 2026: 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 August 24, 2026. EchelonGraph's copy of the record carries a last-modified date of October 14, 2026; the record at its source may have been updated since.
Is CVE-2026-78465 actively exploited?
CVE-2026-78465 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78465?
CVE-2026-78465 has a CVSS base score of 7.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-78465?
A fix for CVE-2026-78465 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-78465 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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