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No exploitation reportedFix available

CVE-2021-40266

No exploitation reported by the sources we read.

  • Published2023-08-22
  • Fixed in1.18.0
  • WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

FreeImage before 1.18.0, ReadPalette function in PluginTIFF.cpp is vulnerabile to null pointer dereference.

Timeline

dates in UTC
  1. 2023-08-2219:16CVE publishedNVD

Versions per branch

NVD
Freeimage project freeimage
BranchAffectedFixed in
1.18< 1.18.01.18.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • freeimageUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • freeimageUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • freeimageUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • freeimageUbuntu:26.10all versions · no fixed version listed
  • freeimageUbuntu:26.04:LTSall versions · no fixed version listed
  • freeimageUbuntu:25.10all versions · no fixed version listed
  • freeimageUbuntu:24.04:LTSall versions · no fixed version listed
  • freeimageUbuntu:22.04:LTSall versions · no fixed version listed

8 more package ranges on OSV.dev

Vendor advisories

  • CVE-2021-40266 Red Hat Product Security

    freeimage: NULL pointer dereference in ReadPalette() in PluginTIFF.cpp

Full record on NVD

Fix

  1. Update Freeimage project freeimage to 1.18.0

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2023-08-22
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-843v-g785-48r2

Frequently asked questions

What is CVE-2021-40266?

FreeImage before 1.18.0, ReadPalette function in PluginTIFF.cpp is vulnerabile to null pointer dereference.

Is CVE-2021-40266 actively exploited?

Active exploitation of CVE-2021-40266 has not been confirmed. Its EPSS score was 1.0% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-40266?

CVE-2021-40266 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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Sources for this record