CVE-2026-25541

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

0.61% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2026-02-04 22:03Z8 MO AGO

Last updated

2026-02-05 15:13Z8 MO AGO

Reserved

2026-02-02

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-680Integer Overflow to Buffer OverflowCompound

Data version

5.2

Document digest

d62354eb999875100057209cc5e80dbe8d4ab3ce00f9425239ad6610ef869b23

• github.comhttps://github.com/tokio-rs/bytes/security/advisories/GHSA-434x-w66g-qw3rx_refsource_CONFIRM
• github.comhttps://github.com/tokio-rs/bytes/commit/d0293b0e35838123c51ca5dfdf468ecafee4398fx_refsource_MISC
• github.comhttps://github.com/tokio-rs/bytes/releases/tag/v1.11.1x_refsource_MISC
• rustsec.orghttps://rustsec.org/advisories/RUSTSEC-2026-0007.htmlx_refsource_MISC