CVE-2026-93962

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

0.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 52.2% 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:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/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

Deferred. NVD last modified this record on 2026-09-22.

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

2026-09-20 05:00Z1 MO AGO

Last updated

2026-09-22 16:06Z1 MO AGO

Reserved

2026-09-19

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

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

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-122Heap-based Buffer OverflowVariant

Data version

5.2

Document digest

2e778f7adb5d7802cee7a8c345ff10b06fe28e9ae4acb60b658598bc3b555e58

• vuldb.comVDB-407921 | Kamailio CDP Diameter Receiver receiver.c shm_malloc heap-based overflowhttps://vuldb.com/vuln/407921vdb-entrytechnical-description
• vuldb.comVDB-407921 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/407921/ctisignaturepermissions-required
• vuldb.comCVE-2026-93962 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-93962third-party-advisory
• vuldb.comSubmit #944244 | Kamailio Kamailio SIP Server 6.1.4 Heap-based Buffer Overflowhttps://vuldb.com/submit/944244third-party-advisory
• github.comhttps://github.com/kamailio/kamailio/issues/4876exploitissue-tracking
• github.comhttps://github.com/kamailio/kamailio/pull/4877issue-trackingpatch
• github.comhttps://github.com/kamailio/kamailio/commit/38711a3e788de0130d48cb485578c482b57d9351patch
• github.comhttps://github.com/kamailio/kamailio/releases/tag/6.0.8patch
• github.comhttps://github.com/kamailio/kamailio/product