CVE-2025-25200

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• 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

0.83% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 54.7% of scored records. A rank, not a probability.

NVD base score

9.2 (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:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/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

2025-02-12 17:59Z1 YR AGO

Last updated

2025-02-12 19:29Z1 YR AGO

Reserved

2025-02-03

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.2)

CNA CVSS vector

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

Weaknesses

• CWE-1333Inefficient Regular Expression ComplexityBase

Data version

5.1

Document digest

30fee6187e01003efa979dd0940b3a8dca9eedf9d20a909efb39e0e351acdf47

• github.comhttps://github.com/koajs/koa/security/advisories/GHSA-593f-38f6-jp5mx_refsource_CONFIRM
• github.comhttps://github.com/koajs/koa/commit/5054af6e31ffd451a4151a1fe144cef6e5d0d83cx_refsource_MISC
• github.comhttps://github.com/koajs/koa/commit/5f294bb1c7c8d9c61904378d250439a321bffd32x_refsource_MISC
• github.comhttps://github.com/koajs/koa/commit/93fe903fc966635a991bcf890cfc3427d33a1a08x_refsource_MISC
• github.comhttps://github.com/koajs/koa/blob/master/lib/request.js#L259x_refsource_MISC
• github.comhttps://github.com/koajs/koa/blob/master/lib/request.js#L404x_refsource_MISC
• github.comhttps://github.com/koajs/koa/releases/tag/2.15.4x_refsource_MISC