CVE-2025-9300

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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 17.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2025-08-21 13:02Z1 YR AGO

Last updated

2025-08-21 14:46Z1 YR AGO

Reserved

2025-08-21

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

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

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-121Stack-based Buffer OverflowVariant
• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

1aec9f151dee7cc3f1242b6eb4cb506504af81bbd2031ece4237f1cfc951dc99

• vuldb.comVDB-320905 | saitoha libsixel img2sixel encoder.c sixel_debug_print_palette stack-based overflowhttps://vuldb.com/?id.320905vdb-entrytechnical-description
• vuldb.comVDB-320905 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.320905signaturepermissions-required
• vuldb.comSubmit #632366 | LibSixel img2sixel LibSixel version 1.10.3 (commit 6dd664c) compiled on Aug 2 2025 and the newest master version. Heap Buffer Overflowhttps://vuldb.com/?submit.632366third-party-advisory
• github.comhttps://github.com/saitoha/libsixel/issues/200issue-tracking
• github.comhttps://github.com/saitoha/libsixel/issues/200#issuecomment-3178785635issue-tracking
• drive.google.comhttps://drive.google.com/file/d/1IIvvRFgUQZcySqeoqXXhsxd0HZCjClJ7/view?usp=sharingexploit
• github.comhttps://github.com/saitoha/libsixel/commit/316c086e79d66b62c0c4bc66229ee894e4fdb7d1patch