CVE-2025-8671

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

3.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 89.2% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Deferred. 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

2025-08-13 12:03Z1 YR AGO

Last updated

2025-11-04 21:15Z11 MO AGO

Reserved

2025-08-06

Assigning CNA

certcc

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-404Improper Resource Shutdown or ReleaseClass

Data version

5.2

Document digest

f6166a3fd67a03ec8802126ea3ac6ff99b6571760c40db785a31f0bf963c4717

• galbarnahum.comhttps://galbarnahum.com/made-you-reset
• kb.cert.orghttps://kb.cert.org/vuls/id/767506
• varnish-cache.orghttps://varnish-cache.org/security/VSV00017.html
• www.fastlystatus.comhttps://www.fastlystatus.com/incident/377810
• github.comhttps://github.com/h2o/h2o/commit/4729b661e3c6654198d2cc62997e1af58bef4b80
• support2.windriver.comhttps://support2.windriver.com/index.php?page=security-notices
• www.suse.comhttps://www.suse.com/support/kb/doc/?id=000021980
• gitlab.isc.orghttps://gitlab.isc.org/isc-projects/bind9/-/issues/5325
• github.comhttps://github.com/h2o/h2o/security/advisories/GHSA-mrjm-qq9m-9mjq
• github.comhttps://github.com/envoyproxy/envoy/issues/40739
• github.comhttps://github.com/varnish/hitch/issues/397
• github.comhttps://github.com/Kong/kong/discussions/14731
• deepness-lab.orghttps://deepness-lab.org/publications/madeyoureset/
• www.imperva.comhttps://www.imperva.com/blog/madeyoureset-turning-http-2-server-against-itself/
• www.kb.cert.orghttps://www.kb.cert.org/vuls/id/767506
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/18/1
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/08/13/6