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CVE-2020-25651

22
FAUCET Score

CVE-2020-25651 is a flaw in the SPICE file transfer protocol, affecting spice-vdagent versions 0.20 and prior, including various Debian and Fedora distributions. This vulnerability allows an illegitimate local user in a virtual machine to potentially access file data from the host system, compromising data confidentiality. It also poses a denial-of-service risk by interrupting active file transfers. Rated Medium severity (CVSS 6.4), exploitation requires local access and high attack complexity, with impacts primarily on confidentiality and availability. There is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.20.0CPE matchmatch criteria
cpe:2.3:a:spice-space:spice-vdagent:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
1.1
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 66th percentile among its peer group of 1,297 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

microsoftpatch availablevia msrc
Product: 19198-16823Fixed in: 0.22.1-1
microsoftpatch availablevia msrc
Product: cbl2 spice-vdagent 0.22.1-1 on CBL Mariner 2.0Fixed in: 0.22.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 0.22.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 0.22.1-1
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: spice-vdagent-0:0.20.0-3.el8
View patch

Vendor Advisories (3)

microsoft2022-Jan/CVE-2020-25651

CVE-2020-25651

Jan 11, 2022
microsoft2020-Nov/CVE-2020-25651Moderate

A flaw was found in the SPICE file transfer protocol. File data from the host system can end up in full or in parts in the client connection of an illegitimate local user in the VM system. Active file transfers from other users could also be interrupted resulting in a denial of service. 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.

Nov 10, 2020
redhatCVE-2020-25651Moderate

spice-vdagent: possible file transfer DoS and information leak via active_xfers hash map

Nov 3, 2020

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2021/01/msg00012.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GQT56LATVTB2DJOVVJOKQVMVUXYCT2VB
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/OIWJ2EIQXWEA2VDBODEATHAT37X4CREP
openwall.com / lists/oss-security/2020/11/04/1
ExploitMailing ListThird Party Advisory