CVE-2021-40263

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

8.8 HighFix available

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.16%Up 1.1 points since Aug 25, 2023

What each source reports

NVD Score used 8.8

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

Record: CVE-2021-40263
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

Record: CVE-2021-40263
Updated: 2026-11-02

EUVDEUVD-2021-27447 No score

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

Record: EUVD-2021-27447
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jpj5-vg69-hf8v 8.8

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

Record: GHSA-jpj5-vg69-hf8v
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSV 8.8

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

Record: CVE-2021-40263
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2021-40263 8.8

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

Record: DEBIAN-CVE-2021-40263
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVOESA-2024-2305 8.8

freeimage security update

FreeImage is a library project for developers who would like to support popular graphics image formats (PNG, JPEG, TIFF, BMP and others). Some highlights are: extremely simple in use, not limited to the local PC (unique FreeImageIO) and Plugin driven!

Security Fix(es):

Buffer Overflow vulnerability in load function in PluginICO.cpp in FreeImage 3.19.0 [r1859] allows remote attackers to run arbitrary code via opening of crafted ico file.(CVE-2020-24292)

Buffer Overflow vulnerability in psdThumbnail::Read in PSDParser.cpp in FreeImage 3.19.0 [r1859] allows remote attackers to run arbitrary code via opening of crafted psd file.(CVE-2020-24293)

Buffer Overflow vulnerability in PSDParser.cpp::ReadImageLine() in FreeImage 3.19.0 [r1859] allows remote attackers to ru narbitrary code via use of crafted psd file.(CVE-2020-24295)

Buffer Overflow vulnerability in Freeimage v3.18.0 allows attacker to cause a denial of service via a crafted JXR file.(CVE-2021-33367)

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.(CVE-2021-40263)

FreeImage before 1.18.0, ReadPalette function in PluginTIFF.cpp is vulnerabile to null pointer dereference.(CVE-2021-40266)

Memory Allocation with Excessive Size Value discovered in BitmapAccess.cpp::FreeImage_AllocateBitmap in FreeImage 3.18.0 allows attackers to cause a denial of service.(CVE-2023-47995)

An issue discovered in BitmapAccess.cpp::FreeImage_AllocateBitmap in FreeImage 3.18.0 leads to an infinite loop and allows attackers to cause a denial of service.(CVE-2023-47997)

Record: OESA-2024-2305
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2021-40263 8.8

A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

Record: UBUNTU-CVE-2021-40263
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

freeimage project freeimage

Affected packages

Affected packages
Package	Affected	Fixed
`freeimage` Debian:12	All versions, plus listed versions 3.18.0+ds2-103.18.0+ds2-113.18.0+ds2-93.18.0+ds2-9+deb12u13.18.0+ds2-9.14.2.1+ds-1~exp14.2.1+ds-1~exp24.2.1+ds-1~exp3	None known
`freeimage` Debian:13	All versions, plus listed versions 3.18.0+ds2-114.2.1+ds-1~exp14.2.1+ds-1~exp24.2.1+ds-1~exp3	None known
`freeimage` openEuler:20.03-LTS-SP4	before 3.18.0-7.oe2003sp4	3.18.0-7.oe2003sp4
`freeimage` openEuler:22.03-LTS-SP1	before 3.18.0-11.oe2203sp1	3.18.0-11.oe2203sp1
`freeimage` openEuler:24.03-LTS	before 3.18.0-13.oe2403	3.18.0-13.oe2403
`freeimage` openEuler:22.03-LTS-SP4	before 3.18.0-11.oe2203sp4	3.18.0-11.oe2203sp4
`freeimage` openEuler:22.03-LTS-SP3	before 3.18.0-11.oe2203sp3	3.18.0-11.oe2203sp3
`freeimage` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 3.15.1-2build13.15.1-2build23.15.4-23.15.4-33.15.4-3ubuntu0.13.15.4-3ubuntu0.1+esm13.15.4-3ubuntu0.1+esm23.15.4-3ubuntu0.1+esm3	None known
`freeimage` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 3.15.4-4.1build13.15.4-63.17.0+ds1-1.13.17.0+ds1-23.17.0+ds1-2ubuntu0.13.17.0+ds1-2ubuntu0.1+esm1	None known
`freeimage` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 3.17.0+ds1-5build23.17.0+ds1-5+deb9u1build0.18.04.13.17.0+ds1-5+deb9u1ubuntu0.1~esm1	None known

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Affected packages
Package	Affected	Fixed
`freeimage` Ubuntu:20.04:LTS	All versions, plus listed versions 3.18.0+ds2-1ubuntu13.18.0+ds2-1ubuntu23.18.0+ds2-1ubuntu33.18.0+ds2-1ubuntu3.1	None known
`freeimage` Ubuntu:22.04:LTS	All versions, plus listed versions 3.18.0+ds2-6ubuntu33.18.0+ds2-6ubuntu43.18.0+ds2-6ubuntu53.18.0+ds2-6ubuntu5.1	None known
`freeimage` Ubuntu:24.04:LTS	All versions, plus listed versions 3.18.0+ds2-9.13.18.0+ds2-103.18.0+ds2-10build23.18.0+ds2-10build33.18.0+ds2-10build4	None known
`freeimage` Ubuntu:25.10	All versions, plus listed versions 3.18.0+ds2-11	None known
`freeimage` Ubuntu:26.10	All versions, plus listed versions 3.18.0+ds2-11build13.18.0+ds2-11build23.18.0+ds2-11build3	None known
`freeimage` Ubuntu:26.04:LTS	All versions, plus listed versions 3.18.0+ds2-113.18.0+ds2-11build1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-40263 is a high vulnerability (CVSS 8.8) in Freeimage Project Freeimage, published August 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.16%, the 67th percentile. Fixed in freeimage 3.18.0-7.oe2003sp4.

References

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