CVE-2026-77680

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

0.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 27.6% of scored records. A rank, not a probability.

NVD base score

5.3 (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:L

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-08-28.

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

2026-08-25 20:36Z2 MO AGO

Last updated

2026-08-26 12:43Z2 MO AGO

Reserved

2026-08-21

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-407Inefficient Algorithmic ComplexityClass

Data version

5.2

Document digest

029e90823c0de4cd50c6b8dd692d1bbe288db97252740a85974513f60f0ccfad

• access.redhat.comCVE-2025-32907https://access.redhat.com/security/cve/CVE-2025-32907technical-descriptionx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-77680vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2520892https://bugzilla.redhat.com/show_bug.cgi?id=2520892issue-trackingx_refsource_REDHAT
• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libsoup/-/issues/538
• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/550