Skip to content
Noroxi
CVE-2025-12464· NVD / CVE Program· CNA redhat

Qemu-kvm: stack buffer overflow in e1000 device via short frames in loopback mode

Noroxi assessment

Priority: Monitor (action score 24/100)

  • 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: 0.18% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: gitlab.com/qemu-project/qemu qemu 10.1.3; azl3 qemu 8.2.0-23 on Azure Linux 3.0 8.2.0-25; azl3 qemu 8.2.0-25 on Azure Linux 3.0 8.2.0-25.

Low priority for now. Upgrade to gitlab.com/qemu-project/qemu qemu 10.1.3; azl3 qemu 8.2.0-23 on Azure Linux 3.0 8.2.0-25; azl3 qemu 8.2.0-25 on Azure Linux 3.0 8.2.0-25 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 stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.

MediumCVSS 6.2 · v3.1—No exploit Fix available
Published
Oct 31, 2025
Updated
Oct 18, 2026
EPSS
0.1% · 7th percentile

Report tools

JSON

Action score

24

Monitor

Low priority for now.

CVSS
24 / 40 · 6.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
6.2
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-12464

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for red hat records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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.

—

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.

  • gitlab.com/qemu-project/qemu qemu

    • 8.1.0 and later · before 10.1.3affected · semver

  • Red Hat Red Hat Enterprise Linux 10

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsunknown
    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsaffected

  • Red Hat Red Hat OpenShift Container Platform 4

    • all versionsaffected
    • all versionsaffected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:13qemubefore 1:10.0.7+ds-0+deb13u11:10.0.7+ds-0+deb13u1
Debian:14qemubefore 1:10.1.3+ds-11:10.1.3+ds-1
openSUSE:Leap 15.6qemubefore 8.2.10-150600.3.43.18.2.10-150600.3.43.1
openSUSE:Leap 15.6qemu-linux-userbefore 8.2.10-150600.3.43.18.2.10-150600.3.43.1
openSUSE:Leap 16.0qemubefore 10.0.7-160000.1.110.0.7-160000.1.1
openSUSE:Leap 16.0qemu-linux-userbefore 10.0.7-160000.1.110.0.7-160000.1.1
openSUSE:Tumbleweedqemubefore 10.1.3-1.110.1.3-1.1
SUSE:Linux Enterprise Micro 5.3qemubefore 6.2.0-150400.37.46.16.2.0-150400.37.46.1
SUSE:Linux Enterprise Micro 5.5qemubefore 7.1.0-150500.49.36.27.1.0-150500.49.36.2
SUSE:Linux Enterprise Module for Basesystem 15 SP7qemubefore 9.2.4-150700.3.11.19.2.4-150700.3.11.1
SUSE:Linux Enterprise Module for Package Hub 15 SP7qemu-linux-userbefore 9.2.4-150700.3.11.19.2.4-150700.3.11.1
SUSE:Linux Enterprise Server 15 SP6-LTSSqemubefore 8.2.10-150600.3.43.18.2.10-150600.3.43.1
SUSE:Linux Enterprise Server 16.0qemu-linux-userbefore 10.0.7-160000.1.110.0.7-160000.1.1
SUSE:Linux Micro 6.0qemubefore 8.2.10-1.18.2.10-1.1
SUSE:Linux Micro 6.1qemubefore 8.2.10-slfo.1.1_3.18.2.10-slfo.1.1_3.1
SUSE:Linux Micro 6.2qemubefore 10.0.7-160000.1.110.0.7-160000.1.1

Same product

red hat: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-10230Samba: command injection in wins server hook script
    52Plan
  • CVE-2026-4631Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
    42Plan
  • CVE-2026-76578Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-11561Oct 9, 2025 · Sssd: sssd default kerberos configuration allows privilege escalation on ad-joined linux systems
    35Monitor
  • ← EarlierCVE-2025-9640Oct 15, 2025 · Samba: vfs_streams_xattr uninitialized memory write possible
    17Monitor
  • Later →CVE-2025-12748Nov 11, 2025 · Libvirt: denial of service in xml parsing
    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
gitlab.com/qemu-project/qemu qemu10.1.3Vendor (CNA)
azl3 qemu 8.2.0-23 on Azure Linux 3.08.2.0-25 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 qemu 8.2.0-25 on Azure Linux 3.08.2.0-25 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:qemu1:10.0.7+ds-0+deb13u1 · Debian:13Package registry (OSV)
opensuse:qemu8.2.10-150600.3.43.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:qemu-linux-user8.2.10-150600.3.43.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:qemu10.0.7-160000.1.1 · SUSE:Linux Micro 6.2Package registry (OSV)
suse:qemu8.2.10-150600.3.43.1 · SUSE:Linux Enterprise Server 15 SP6-LTSSPackage registry (OSV)
suse:qemu-linux-user10.0.7-160000.1.1 · SUSE:Linux Enterprise Server 16.0Package 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-071969 days apartLibsoup: signed to unsigned conversion error leading to stack-based buffer overflow in libsoup ntlm authentication
    34Monitor
  • CVE-2026-176194 days apartLibsoup: stack-based buffer overflow in libsoup multipart response parsingmultipart http response
    34Monitor
  • CVE-2026-43958213 days apartRrdtool: rrdtool: stack buffer overflow allows local code execution or denial of service
    31Monitor
  • CVE-2026-112257353 days apartGimp: gimp: heap out-of-bounds read/write in psd thumbnail loader (load_resource_1033)
    31Monitor
  • CVE-2026-59692251 days apartGstreamer1-plugins-bad-free: gstreamer: dtls certificate subject dn stack buffer overflow in openssl_verify_callback
    30Monitor
  • CVE-2026-16277262 days apartRpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist()
    26Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-121 · Stack-based Buffer Overflow

CVSS vector

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

nvd-secondary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

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

All records