CVE-2026-5318

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.8% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-02 01:45Z7 MO AGO

Last updated

2026-04-07 11:26Z6 MO AGO

Reserved

2026-04-01

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

28a890cfcd333a09e74f3bfe4f7748a93ea7271500cfc56d9a5395ef4a870519

• vuldb.comVDB-354650 | LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds writehttps://vuldb.com/vuln/354650vdb-entrytechnical-description
• vuldb.comVDB-354650 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/354650/ctisignaturepermissions-required
• vuldb.comSubmit #780538 | LibRaw 0.22.0 Out-of-bounds Writehttps://vuldb.com/submit/780538third-party-advisory
• github.comhttps://github.com/LibRaw/LibRaw/issues/794issue-tracking
• github.comhttps://github.com/LibRaw/LibRaw/issues/794#issuecomment-4065342499issue-tracking
• github.comhttps://github.com/biniamf/pocs/tree/main/libraw_lljpegexploit
• github.comhttps://github.com/LibRaw/LibRaw/commit/a6734e867b19d75367c05f872ac26322464e3995patch
• github.comhttps://github.com/LibRaw/LibRaw/releases/tag/0.22.1patch
• github.comhttps://github.com/LibRaw/LibRaw/product