CVE-2026-33328

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 96% of all CVEs by exploit prediction. 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, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

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
Severity55% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

July 20, 2026

Last Modified

August 19, 2026

Advisory Details (3)

Auto-updated Jul 20, 2026
Patch available. Sources: github, github_commit, github_pr.
github Patch Available

Possible integer overflow on 32-bit systems when reading GIF images · Advisory · libvips/libvips · GitHub

https://github.com/libvips/libvips/security/advisories/GHSA-r98w-4fp7-m9c7
github_pr Patch Available

gifload: guard against int overflow on 32-bit platforms

Patch available: libvips/libvips v8.18.1 (PR #4935 merged 2026-03-07)

https://github.com/libvips/libvips/pull/4935
github_commit Patch Available

commit 9b633e45abfc (libvips/libvips)

Patch available: libvips/libvips v8.18.1 (contains commit 9b633e45abfc)

https://github.com/libvips/libvips/commit/9b633e45abfcf1fc4c84847007c81805193c0969

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
vips8.10.5-2 ... 8.18.4-1 (41 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
vips8.14.1-3 ... 8.18.6-1 (33 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
vips8.16.1-1 ... 8.18.6-1 (14 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
vips8.16.1-1 ... 8.18.0-3 (7 versions)8.18.1-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 45× 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 108 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 03:58 UTCEG score recompute
  5. 2026-09-17 19:30 UTCEPSS rescore
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-16 12:48 UTCEG score recompute
  8. 2026-09-16 05:15 UTCEPSS rescore
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  11. 2026-09-13 16:47 UTCEPSS rescore
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  13. 2026-09-11 14:53 UTCEPSS rescore
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  15. 2026-09-11 09:26 UTCEG score recompute
  16. 2026-09-10 09:34 UTCEPSS rescore
  17. 2026-09-09 11:56 UTCEG score recompute
  18. 2026-09-08 22:00 UTCEPSS rescore
  19. 2026-09-07 22:54 UTCEG score recompute
  20. 2026-09-07 16:01 UTCEPSS rescore
  21. 2026-09-06 13:47 UTCEPSS rescore
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  23. 2026-09-06 11:45 UTCEG score recompute
  24. 2026-09-05 09:32 UTCEG score recompute
  25. 2026-09-04 05:06 UTCEPSS rescore
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  1. 2026-09-02 14:11 UTCEPSS rescore
  2. 2026-09-01 13:53 UTCEPSS rescore
  3. 2026-09-01 04:39 UTCEPSS rescore
  4. 2026-09-01 04:39 UTCEPSS rescore
  5. 2026-08-31 03:02 UTCEG score recompute
  6. 2026-08-30 19:17 UTCEPSS rescore
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  8. 2026-08-30 01:22 UTCEPSS rescore
  9. 2026-08-28 21:41 UTCEPSS rescore
  10. 2026-08-27 23:47 UTCEG score recompute
  11. 2026-08-27 14:25 UTCEPSS rescore
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  15. 2026-08-25 13:49 UTCEPSS rescore
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  19. 2026-08-23 00:19 UTCEPSS rescore
  20. 2026-08-22 20:51 UTCEG score recompute
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  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-20 22:55 UTCEPSS rescore
  25. 2026-08-19 19:35 UTCEG score recompute▼ 1.30
  26. 2026-08-19 19:35 UTCNVD updateCVSS v3 → 5.5
  27. 2026-08-19 17:03 UTCEPSS rescore
  28. 2026-08-18 19:36 UTCEG score recompute
  29. 2026-08-18 13:48 UTCEPSS rescore
  30. 2026-08-17 14:03 UTCEG score recompute
  31. 2026-08-16 14:56 UTCEPSS rescore
  32. 2026-08-16 13:38 UTCEG score recompute
  33. 2026-08-16 02:14 UTCEPSS rescore
  34. 2026-08-15 13:13 UTCEG score recompute
  35. 2026-08-15 01:30 UTCEPSS rescore
  36. 2026-08-14 12:47 UTCEG score recompute
  37. 2026-08-13 22:00 UTCEPSS rescore
  38. 2026-08-13 12:21 UTCEG score recompute
  39. 2026-08-12 13:50 UTCEPSS rescore
  40. 2026-08-11 11:30 UTCEG score recompute
  41. 2026-08-11 00:00 UTCEPSS rescore
  42. 2026-08-10 11:05 UTCEG score recompute
  43. 2026-08-09 13:46 UTCEPSS rescore
  44. 2026-08-09 10:39 UTCEG score recompute
  45. 2026-08-08 16:37 UTCEPSS rescore
  46. 2026-08-08 10:13 UTCEG score recompute
  47. 2026-08-07 09:48 UTCEG score recompute
  48. 2026-08-06 13:46 UTCEPSS rescore
  49. 2026-08-06 09:22 UTCEG score recompute
  50. 2026-08-05 19:17 UTCEPSS rescore
  51. 2026-08-05 08:57 UTCEG score recompute
  52. 2026-08-04 15:10 UTCEPSS rescore
  53. 2026-08-04 10:38 UTCEPSS rescore
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  55. 2026-08-03 10:36 UTCEPSS rescore
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  57. 2026-08-02 02:27 UTCEPSS rescore
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  59. 2026-08-01 04:16 UTCEPSS rescore
  60. 2026-07-31 06:44 UTCEG score recompute
  61. 2026-07-30 16:28 UTCEPSS rescore
  62. 2026-07-30 06:17 UTCEG score recompute
  63. 2026-07-30 01:30 UTCEPSS rescore
  64. 2026-07-29 05:51 UTCEG score recompute
  65. 2026-07-28 05:25 UTCEG score recompute
  66. 2026-07-27 14:13 UTCEPSS rescore
  67. 2026-07-27 04:59 UTCEG score recompute
  68. 2026-07-26 14:54 UTCEPSS rescore
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  70. 2026-07-26 04:30 UTCEG score recompute
  71. 2026-07-25 14:18 UTCEPSS rescore
  72. 2026-07-25 14:18 UTCEPSS rescore
  73. 2026-07-24 14:17 UTCEPSS rescore
  74. 2026-07-24 14:17 UTCEPSS rescore
  75. 2026-07-23 14:18 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-33328?
CVE-2026-33328 is a medium vulnerability published on July 20, 2026. libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.
When was CVE-2026-33328 disclosed?
CVE-2026-33328 was first published in the National Vulnerability Database on July 20, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33328 actively exploited?
CVE-2026-33328 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 95.7% of all scored CVEs.
What is the CVSS score of CVE-2026-33328?
CVE-2026-33328 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-33328?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33328, 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

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