CVE-2020-25653
A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections. This flaw may allow an…
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections. This flaw may allow an unprivileged local guest user to become the active agent for spice-vdagentd, possibly resulting in a denial of service or information leakage from the host. The highest threat from this vulnerability is to data confidentiality as well as system availability. This flaw affects spice-vdagent versions 0.20 and prior.
Timeline
ID reserved
By redhat
- 2 months later
· 2 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.33% · top 74% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.3.
Weakness
Affected products
spice-vdagent
- affected spice-vdagent versions 0.20 and prior
References (5)
- https://www.openwall.com/lists/oss-security/2020/11/04/1 (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1886372 (opens in a new tab)x_refsource_MISCx_transferred
- [debian-lts-announce] 20210113 [SECURITY] [DLA 2524-1] spice-vdagent security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2021-09ce0cdfac (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2021-510977db25 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-25653)Record last updated .