CVE-2025-70103

HIGHNVD 7.37.3—Trending — 3 sources updated this weekElevated

7.3

Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras::DecodeImagePNM function in file lib/extras/dec/pnm.cc.

CVSS v3: 7.3
EG Score: 7.3(high)
EPSS: 13.1%
KEV: Not listed

Published

May 27, 2026

Last Modified

May 30, 2026

Advisory Details (5)

Auto-updated May 30, 2026

No patch confirmed yet. Sources: github_pr.

generic

lib/extras/dec/pnm.cc:554 heap-buffer-overflow in jxl::extras::DecodeImagePNM · Issue #4337 · libjxl/libjxl · GitHub

https://github.com/libjxl/libjxl/issues/4337

generic

oss-security - CVE-2025-70103: Heap-based Buffer Overflow in libjxl/cjxl via jxl::extras::DecodeImagePNM on crafted PBM file

http://www.openwall.com/lists/oss-security/2026/05/30/7

generic

sigdevel: "Security Advisory: CVE-2025-70103 - Heap-Based Bu…" - Infosec Exchange

https://infosec.exchange/@sigdevel/116642233929409910

generic

pocs/res/libjxl/2025/2 at main · sigdevel/pocs · GitHub

https://github.com/sigdevel/pocs/blob/main/res/libjxl/2025/2

github_pr

try to fix #4337

Upstream fix in progress (PR #4338 · libjxl/libjxl, state=closed)

https://github.com/libjxl/libjxl/pull/4338

Vendor Advisories for CVE-2025-70103(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-4xm2-q73p-253r
GitHub Security AdvisoriesHigh
Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras:...

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-122Heap-based Buffer Overflow

Data Freshness Timeline

(refreshed 13× in last 7d / 13× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-01 01:28 UTCEG score recompute▲ 7.30
2026-06-01 01:28 UTCGHSA enrichment
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 15:36 UTCEG score recompute
2026-05-27 15:36 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2025-70103?

CVE-2025-70103 is a high vulnerability published on May 27, 2026. Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras::DecodeImagePNM function in file lib/extras/dec/pnm.cc.

When was CVE-2025-70103 disclosed?

CVE-2025-70103 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on May 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-70103 actively exploited?

CVE-2025-70103 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-70103?

CVE-2025-70103 has a CVSS v3 base score of 7.3 (NVD).

How do I remediate CVE-2025-70103?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-70103, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-70103

📅 Published

🔄 Last Modified

📋 Advisory Details (5)

lib/extras/dec/pnm.cc:554 heap-buffer-overflow in jxl::extras::DecodeImagePNM · Issue #4337 · libjxl/libjxl · GitHub

oss-security - CVE-2025-70103: Heap-based Buffer Overflow in libjxl/cjxl via jxl::extras::DecodeImagePNM on crafted PBM file

sigdevel: "Security Advisory: CVE-2025-70103 - Heap-Based Bu…" - Infosec Exchange

pocs/res/libjxl/2025/2 at main · sigdevel/pocs · GitHub

try to fix #4337

📣 Vendor Advisories for CVE-2025-70103(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-70103?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

Advisory Details (5)

Vendor Advisories for CVE-2025-70103(1)

Frequently asked(5)

Related CVEs(same CWE)