CVE-2023-27781

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

7.8 HighFix available

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.39%Up 0.3 points since Mar 16, 2023

What each source reports

NVD Score used 7.8

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Record: CVE-2023-27781
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/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

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Record: CVE-2023-27781
Updated: 2026-11-02

EUVDEUVD-2023-31517 0.0

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Record: EUVD-2023-31517
CVSS: 0.0 NoneCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-9j85-mhfm-pjrc 7.8

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Record: GHSA-9j85-mhfm-pjrc
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSVDEBIAN-CVE-2023-27781 7.8

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Record: DEBIAN-CVE-2023-27781
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2023-27781 7.8

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Record: UBUNTU-CVE-2023-27781
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSV No score

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Record: CVE-2023-27781
Updated: 2026-11-02

OSVMGASA-2023-0143 No score

Updated jpegoptim packages fix security vulnerability

A heap overflow can occur with crafted JPEG image file. (CVE-2023-27781)

Record: MGASA-2023-0143
Updated: 2026-11-02

Affected products

jpegoptim project jpegoptim

Affected packages

Affected packages
Package	Affected	Fixed
`jpegoptim` Debian:12	All versions, plus listed versions 1.4.7-1	None known
`jpegoptim` Debian:13	All versions, plus listed versions 1.4.7-1	None known
`jpegoptim` Debian:14	All versions, plus listed versions 1.4.7-1	None known
`jpegoptim` Mageia:8	before 1.5.1-1.1.mga8	1.5.1-1.1.mga8
`jpegoptim` Ubuntu:14.04:LTS	All versions, plus listed versions 1.3.0-11.3.0-1ubuntu1	None known
`jpegoptim` Ubuntu:16.04:LTS	All versions, plus listed versions 1.4.3-1	None known
`jpegoptim` Ubuntu:18.04:LTS	All versions, plus listed versions 1.4.4-1	None known
`jpegoptim` Ubuntu:20.04:LTS	All versions, plus listed versions 1.4.6-1	None known
`jpegoptim` Ubuntu:22.04:LTS	All versions, plus listed versions 1.4.6-1	None known
`jpegoptim` Ubuntu:24.04:LTS	All versions, plus listed versions 1.4.7-1	None known
`jpegoptim` Ubuntu:25.10	All versions, plus listed versions 1.4.7-1	None known
`jpegoptim` Ubuntu:26.10	All versions, plus listed versions 1.4.7-1build1	None known
`jpegoptim` Ubuntu:26.04:LTS	All versions, plus listed versions 1.4.7-11.4.7-1build1	None known

History

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

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

In short

CVE-2023-27781 is a high vulnerability (CVSS 7.8) in Jpegoptim Project Jpegoptim, published March 15, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 33rd percentile. Fixed in jpegoptim 1.5.1-1.1.mga8.

References

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