CVE-2024-31142
XSA-434 (Speculative Return Stack Overflow) uses the same infrastructure, so is equally impacted.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 17.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
Because of a logical error in XSA-407 (Branch Type Confusion), the mitigation is not applied properly when it is intended to be used. XSA-434 (Speculative Return Stack Overflow) uses the same infrastructure, so is equally impacted. For more details, see: https://xenbits.xen.org/xsa/advisory-407.html https://xenbits.xen.org/xsa/advisory-434.html
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 17.44% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-693
- Affected
- xen/xen · fedoraproject/fedora
- Source
- security@xen.org
EPSS 17.4% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://xenbits.xenproject.org/xsa/advisory-455.htmlPatch, Vendor Advisory
- http://xenbits.xen.org/xsa/advisory-455.htmlPatch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5OK6MH75S7YWD34EWW7QIZTS627RIE3/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RYAZ7P6YFJ2E3FHKAGIKHWS46KYMMTZH/Mailing List, Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-455.htmlPatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.