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NVD / CVE Program· CNA redhat

CVE-2020-25651: A flaw was found in the SPICE file transfer protocol.

MediumCVSS 6.4 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 25/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.29% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: spice-vdagent (AlmaLinux:8) 0.20.0-3.el8; spice-vdagent (Debian:12) 0.20.0-2; spice-vdagent (Debian:9) 0.17.0-1+deb9u1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to spice-vdagent (AlmaLinux:8) 0.20.0-3.el8; spice-vdagent (Debian:12) 0.20.0-2; spice-vdagent (Debian:9) 0.17.0-1+deb9u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Nov 25, 2020
Updated
Jun 16, 2026
EPSS
0.2% · 22th percentile

Report tools

JSON

Action score

25

Monitor

Low priority for now.

CVSS
25 / 40 · 6.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
spice-spacespice-vdagent
debiandebian linux
fedoraprojectfedora

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a spice-vdagent

    • spice-vdagent versions 0.20 and prioraffected
Affected versions · NVD (4)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux9.0
  • fedoraproject fedora32
  • fedoraproject fedora33
  • spice-space spice-vdagentup to 0.20.0 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8spice-vdagentbefore 0.20.0-3.el80.20.0-3.el8
Debian:12spice-vdagentbefore 0.20.0-20.20.0-2
Debian:9spice-vdagentbefore 0.17.0-1+deb9u10.17.0-1+deb9u1
openSUSE:Leap 15.3spice-vdagentbefore 0.21.0-3.3.10.21.0-3.3.1
Red Hat:enterprise_linux:8::appstreamspice-vdagentbefore 0:0.20.0-3.el80:0.20.0-3.el8
Red Hat:enterprise_linux:8::appstreamspice-vdagent-debuginfobefore 0:0.20.0-3.el80:0.20.0-3.el8
Red Hat:enterprise_linux:8::appstreamspice-vdagent-debugsourcebefore 0:0.20.0-3.el80:0.20.0-3.el8
Rocky Linux:8spice-vdagentbefore 0:0.20.0-3.el80:0.20.0-3.el8
SUSE:Linux Enterprise High Performance Computing 15-ESPOSspice-vdagentbefore 0.17.0-4.3.10.17.0-4.3.1
SUSE:Linux Enterprise Module for Desktop Applications 15 SP2spice-vdagentbefore 0.19.0-3.3.10.19.0-3.3.1
SUSE:Linux Enterprise Module for Desktop Applications 15 SP3spice-vdagentbefore 0.21.0-3.3.10.21.0-3.3.1
SUSE:Linux Enterprise Server 12 SP5spice-vdagentbefore 0.16.0-8.8.20.16.0-8.8.2

Same product

spice-space: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-15108spice-vdagent up to and including 0.17.0 does not properly escape save directory before passing to shell, allowing local attacker with…
    31Monitor
  • CVE-2020-25653A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections.
    25Monitor
  • CVE-2020-25652A flaw was found in the spice-vdagentd daemon, where it did not properly handle client connections that can be established via the UNIX…
    22Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2020-25650Nov 25, 2020 · A flaw was found in the way the spice-vdagentd daemon handled file transfers from the host system to the virtual machine.
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:spice-vdagent0.20.0-3.el8 · AlmaLinux:8Package registry (OSV)
debian:spice-vdagent0.20.0-2 · Debian:12Package registry (OSV)
opensuse:spice-vdagent0.21.0-3.3.1 · openSUSE:Leap 15.3Package registry (OSV)
red hat:spice-vdagent0:0.20.0-3.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:spice-vdagent-debuginfo0:0.20.0-3.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:spice-vdagent-debugsource0:0.20.0-3.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
rocky linux:spice-vdagent0:0.20.0-3.el8 · Rocky Linux:8Package registry (OSV)
suse:spice-vdagent0.19.0-3.3.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP2Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
low · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
None
Availability impact
Low

Weakness class (CWE)

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records