CVE-2026-5342

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-04-02. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 5 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A flaw has been found in LibRaw up to 0.22.0. This affects the function LibRaw::nikon_load_padded_packed_raw of the file src/decoders/decoders_libraw.cpp of the component TIFF/NEF. Executing a manipulation of the argument load_flags/raw_width can lead to out-of-bounds read. It is possible to launch the attack remotely. The exploit has been published and may be used. Upgrading to version 0.22.1 mitigates this issue. This patch is called b8397cd45657b84e88bd1202528d1764265f185c. It is advisable to upgrade the affected component.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

April 2, 2026

Last Modified

July 24, 2026

Advisory Details (6)

Auto-updated Jul 26, 2026
Patch available. Sources: github_release, github_commit.
generic

pocs/libraw_nikonpadded at main · biniamf/pocs · GitHub

https://github.com/biniamf/pocs/tree/main/libraw_nikonpadded
github_release Patch Available

0.22.1 release

Patch available: LibRaw/LibRaw 0.22.1

https://github.com/LibRaw/LibRaw/releases/tag/0.22.1
generic

Out-of-Bounds Read in `LibRaw::nikon_load_padded_packed_raw()` Due to Missing Buffer and Dimension Validation · Issue #795 · LibRaw/LibRaw · GitHub

https://github.com/LibRaw/LibRaw/issues/795#issuecomment-4073769886
generic

Out-of-Bounds Read in `LibRaw::nikon_load_padded_packed_raw()` Due to Missing Buffer and Dimension Validation · Issue #795 · LibRaw/LibRaw · GitHub

https://github.com/LibRaw/LibRaw/issues/795
github_commit

commit b8397cd45657 (LibRaw/LibRaw)

Fix landed in LibRaw/LibRaw commit b8397cd45657 — awaiting tagged release

https://github.com/LibRaw/LibRaw/commit/b8397cd45657b84e88bd1202528d1764265f185c
generic

GitHub - LibRaw/LibRaw: LibRaw is a library for reading RAW files from digital cameras · GitHub

https://github.com/LibRaw/LibRaw/

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibraw23t64 (0.21.5b-1ubuntu1.1) @ resolute2026-07-26ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 18× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 110 total refreshes for this CVE.

  1. 2026-07-27 14:14 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-26 09:29 UTCEG score recompute
  5. 2026-07-26 09:29 UTCVendor advisory
  6. 2026-07-26 09:29 UTCGHSA enrichment
  7. 2026-07-25 14:18 UTCEPSS rescore
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  9. 2026-07-24 22:11 UTCNVD updateCVSS v4 → 5.5
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  14. 2026-07-23 03:19 UTCEG score recompute
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  51. 2026-06-11 22:13 UTCGHSA enrichment
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  54. 2026-06-10 13:47 UTCGHSA enrichment
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  58. 2026-06-08 09:23 UTCGHSA enrichment
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  60. 2026-06-07 11:06 UTCGHSA enrichment
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Frequently asked(5)

What is CVE-2026-5342?
CVE-2026-5342 is a medium vulnerability published on April 2, 2026. A flaw has been found in LibRaw up to 0.22.0. This affects the function LibRaw::nikonloadpaddedpackedraw of the file src/decoders/decoderslibraw.cpp of the component TIFF/NEF. Executing a manipulation of the argument loadflags/raw_width can lead to out-of-bounds read. It is possible to launch the…
When was CVE-2026-5342 disclosed?
CVE-2026-5342 was first published in the National Vulnerability Database on April 2, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5342 actively exploited?
CVE-2026-5342 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 49.3% of all scored CVEs.
What is the CVSS score of CVE-2026-5342?
CVE-2026-5342 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-5342?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5342, 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.

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