CVE-2026-53532

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (36th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.12, a crafted HTJ2K-compressed EXR file causes an unconditional process abort in any application that calls exr_start_read() on untrusted input, resulting in denial of service. The crash is triggered by a QCD marker whose lower five bits are zero, which OpenEXR passes into the vendored OpenJPH library while constructing the codestream and evaluating its quantization delta parameters. OpenJPH uses an assertion rather than a recoverable error to validate those bits, so any invalid value calls abort() directly and cannot be intercepted by surrounding error handling, a problem compounded by OpenEXR wrapping only its internal HT header parser in error handling while leaving the later codestream read and construction calls unprotected. This issue has been resolved in version 3.4.13.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
63
EG Risk 63/100CISA SSVC

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
Severity71% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
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
0.4%
EPSS %ILE
36th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

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 yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 24, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Aug 24, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_release.
github_release Patch Available

v3.4.13

Patch available: AcademySoftwareFoundation/openexr v3.4.13

https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.13
githubMentions a patch (unverified)🟡 PoC Available

Unhandled assert abort in HTJ2K decoder via crafted QCD marker (DoS) · Advisory · AcademySoftwareFoundation/openexr · GitHub

https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-2f85-52wj-hc3c

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
openexr3.1.13-1 ... 3.4.6+ds-4 (11 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
openexr3.1.13-2 ... 3.4.6+ds-4 (7 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
openexr3.1.13-2, 3.4.6+ds-1, 3.4.6+ds-2, 3.4.6+ds-3, 3.4.6+ds-4
  • every version up to 3.4.14-0.1: fixed in 3.4.14-0.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 51× 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.

  1. 2026-10-10 20:00 UTCEPSS rescore
  2. 2026-10-10 12:27 UTCEG score recompute
  3. 2026-10-09 20:07 UTCEPSS rescore
  4. 2026-10-09 04:39 UTCEG score recompute
  5. 2026-10-08 17:12 UTCEPSS rescore
  6. 2026-10-08 03:47 UTCEG score recompute
  7. 2026-10-07 23:48 UTCEPSS rescore
  8. 2026-10-06 19:45 UTCEG score recompute
  9. 2026-10-06 15:18 UTCEPSS rescore
  10. 2026-10-06 07:44 UTCEG score recompute
  11. 2026-10-05 17:43 UTCEPSS rescore
  12. 2026-10-05 04:44 UTCEG score recompute
  13. 2026-10-04 23:22 UTCEPSS rescore
  14. 2026-10-03 16:29 UTCEG score recompute
  15. 2026-10-03 14:26 UTCEPSS rescore
  16. 2026-10-02 21:33 UTCEG score recompute
  17. 2026-10-02 17:56 UTCEPSS rescore
  18. 2026-10-01 20:59 UTCEG score recompute
  19. 2026-10-01 19:50 UTCEPSS rescore
  20. 2026-09-30 20:17 UTCEG score recompute
  21. 2026-09-30 15:03 UTCEPSS rescore
  22. 2026-09-30 06:57 UTCEG score recompute
  23. 2026-09-29 15:22 UTCEPSS rescore
  24. 2026-09-28 22:24 UTCEG score recompute
  25. 2026-09-28 13:51 UTCEPSS rescore
Show 59 more
  1. 2026-09-27 22:22 UTCEG score recompute
  2. 2026-09-27 13:48 UTCEPSS rescore
  3. 2026-09-26 22:14 UTCEG score recompute
  4. 2026-09-26 15:59 UTCEPSS rescore
  5. 2026-09-24 22:17 UTCEG score recompute
  6. 2026-09-24 14:04 UTCEPSS rescore
  7. 2026-09-23 21:34 UTCEG score recompute
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-22 21:44 UTCEG score recompute
  10. 2026-09-21 21:54 UTCEG score recompute
  11. 2026-09-20 22:02 UTCEG score recompute
  12. 2026-09-20 20:16 UTCEPSS rescore
  13. 2026-09-19 22:07 UTCEG score recompute
  14. 2026-09-18 21:34 UTCEG score recompute
  15. 2026-09-18 19:28 UTCEPSS rescore
  16. 2026-09-17 21:25 UTCEG score recompute
  17. 2026-09-16 21:35 UTCEG score recompute
  18. 2026-09-16 14:08 UTCEPSS rescore
  19. 2026-09-16 09:26 UTCEG score recompute
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 08:30 UTCEG score recompute
  22. 2026-09-13 20:43 UTCEG score recompute
  23. 2026-09-13 16:47 UTCEPSS rescore
  24. 2026-09-12 20:51 UTCEG score recompute
  25. 2026-09-11 20:59 UTCEG score recompute
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-10 21:07 UTCEG score recompute
  28. 2026-09-10 09:35 UTCEPSS rescore
  29. 2026-09-09 01:20 UTCEG score recompute
  30. 2026-09-08 22:01 UTCEPSS rescore
  31. 2026-09-07 20:26 UTCEG score recompute
  32. 2026-09-07 16:01 UTCEPSS rescore
  33. 2026-09-06 20:33 UTCEG score recompute
  34. 2026-09-06 13:47 UTCEPSS rescore
  35. 2026-09-05 20:41 UTCEG score recompute
  36. 2026-09-04 20:51 UTCEG score recompute
  37. 2026-09-04 08:32 UTCEG score recompute
  38. 2026-09-04 05:06 UTCEPSS rescore
  39. 2026-09-02 20:46 UTCEG score recompute
  40. 2026-09-02 14:12 UTCEPSS rescore
  41. 2026-09-01 20:51 UTCEG score recompute
  42. 2026-09-01 13:54 UTCEPSS rescore
  43. 2026-08-30 20:33 UTCEG score recompute
  44. 2026-08-30 19:17 UTCEPSS rescore
  45. 2026-08-30 08:38 UTCEG score recompute
  46. 2026-08-30 01:22 UTCEPSS rescore
  47. 2026-08-29 08:44 UTCEG score recompute
  48. 2026-08-28 21:41 UTCEPSS rescore
  49. 2026-08-28 20:45 UTCEG score recompute
  50. 2026-08-28 19:51 UTCEG score recompute
  51. 2026-08-27 23:11 UTCEG score recompute
  52. 2026-08-27 14:25 UTCEPSS rescore
  53. 2026-08-26 23:21 UTCEG score recompute
  54. 2026-08-26 14:46 UTCEPSS rescore
  55. 2026-08-25 23:25 UTCEG score recompute
  56. 2026-08-25 13:49 UTCEPSS rescore
  57. 2026-08-24 23:35 UTCEG score recompute
  58. 2026-08-24 22:27 UTCEG score recompute
  59. 2026-08-24 22:26 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-53532?
CVE-2026-53532 is a high vulnerability published on August 24, 2026. OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.12, a crafted HTJ2K-compressed EXR file causes an unconditional process abort in any application that calls exrstartread() on untrusted…
When was CVE-2026-53532 disclosed?
CVE-2026-53532 was first published on August 24, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53532 actively exploited?
CVE-2026-53532 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53532?
CVE-2026-53532 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53532?
A fix for CVE-2026-53532 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53532

Explore →

Is Your Infrastructure Affected by CVE-2026-53532?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs