CVE-2025-8837: A vulnerability was identified in JasPer up to 4.2.5

Q: How do I fix CVE-2025-8837?

jasper: upgrade to newer than 4.2.5. Exact commands for each OS are on this page.

Q: Is CVE-2025-8837 being exploited?

CVE-2025-8837 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-8837 affect?

CVE-2025-8837 affects jasper. Severity is medium (CVSS 5.3). A vulnerability was identified in JasPer up to 4.2.5. This affects the function jpc_dec_dump of the file src/libjasper/jpc/jpc_dec.c of the component JPEG2000 File Handler. The manipulation leads to use after free. An attack has to be appro

Q: How urgent is CVE-2025-8837?

Priority 27/100. Public exploit reference

Routine

MEDIUM 5.3UPGRADE

CVE-2025-8837 is a medium-severity flaw (CVSS 5.3) affecting jasper. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was identified in JasPer up to 4.2.5. This affects the function jpc_dec_dump of the file src/libjasper/jpc/jpc_dec.c of the component JPEG2000 File Handler. The manipulation leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The patch is named 8308060d3fbc1da10353ac8a95c8ea60eba9c25a. It is recommended to apply a patch to fix this issue.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-119, CWE-416
Published	2025-08-11
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: jasper project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-11 08:15 UTCPublished CVE record published
2026-06-17 10:07 UTCUpdated Record last modified

jasper project jasper UPGRADE

Affected: <= 4.2.5

Fixed in: newer than 4.2.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy jasper || rpm -q jasper || jasper --version

2. UPGRADE to newer than 4.2.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jasper

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jasper

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-8837?

jasper: upgrade to newer than 4.2.5. Exact commands for each OS are on this page.

Is CVE-2025-8837 being exploited?

CVE-2025-8837 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-8837 affect?

CVE-2025-8837 affects jasper. Severity is medium (CVSS 5.3). A vulnerability was identified in JasPer up to 4.2.5. This affects the function jpc_dec_dump of the file src/libjasper/jpc/jpc_dec.c of the component JPEG2000 File Handler. The manipulation leads to use after free. An attack has to be appro

How urgent is CVE-2025-8837?

Priority 27/100. Public exploit reference

Related CVEs

CVE-2025-8836 LOW 3.3 UPGRADE A vulnerability was determined in JasPer up to 4.2.5
CVE-2025-8835 LOW 3.3 UPGRADE A vulnerability was found in JasPer up to 4.2.5

References

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