CVE-2025-8837: JasPer JPEG2000 File jpc_dec.c jpc_dec_dump use after free

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-08-11 · updated 2026-06-17
Weakness: CWE-119

Description

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.

Affected products

jasper: through 4.2.5

References

https://drive.google.com/file/d/17Ic_DDOlH7mMT7IbTN2Bmo6SrujIUh24/view?usp=sharing
https://github.com/jasper-software/jasper/commit/8308060d3fbc1da10353ac8a95c8ea60eba9c25a
https://github.com/jasper-software/jasper/issues/402
https://vuldb.com/?ctiid.319371
https://vuldb.com/?id.319371
https://vuldb.com/?submit.630487
https://vuldb.com/?submit.630488
https://github.com/jasper-software/jasper/issues/402
https://vuldb.com/?submit.630488

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