DEBIAN-CVE-2026-6985

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Source
https://security-tracker.debian.org/tracker/CVE-2026-6985
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6985.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-6985
Upstream
Published
2026-04-25T17:16:33Z
Modified
2026-09-14T17:03:29Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A weakness has been identified in Cesanta Mongoose up to 7.20. This vulnerability affects the function handle_opt of the file /src/net_builtin.c of the component TCP Option Handler. This manipulation of the argument optlen causes infinite loop. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 7.21 is able to resolve this issue. Upgrading the affected component is advised. VulDB has contacted the vendor early and they confirmed quickly, that this issue got fixed already.

References

Affected packages

Debian:12 / swupdate

Package

Name
swupdate
Purl
pkg:deb/debian/swupdate?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2022.*
2022.12+dfsg-4
2022.12+dfsg-4+deb12u1~bpo11+1
2022.12+dfsg-4+deb12u1
2022.12+dfsg-4+deb12u2
2023.*
2023.05+dfsg-1
2023.05+dfsg-2~bpo12+1
2023.05+dfsg-2
2023.05+dfsg-3
2023.05+dfsg-4
2023.05+dfsg-5~bpo12+1
2023.05+dfsg-5
2023.12+dfsg-1~bpo12+1
2023.12+dfsg-1
2023.12.1+dfsg-1~bpo12+1
2023.12.1+dfsg-1
2023.12.1+dfsg-2~bpo12+1
2023.12.1+dfsg-2
2024.*
2024.05+dfsg-1
2024.05.2+dfsg-1
2024.05.2+dfsg-2~bpo12+1
2024.05.2+dfsg-2
2024.12+dfsg-1
2024.12+dfsg-2~bpo12+1
2024.12+dfsg-2
2024.12.1+dfsg-1~bpo12+1
2024.12.1+dfsg-1
2024.12.1+dfsg-2
2024.12.1+dfsg-3~bpo12+1
2024.12.1+dfsg-3
2025.*
2025.05+dfsg-1
2025.05+dfsg-2~bpo13+1
2025.05+dfsg-2
2025.05+dfsg-3~bpo13+1
2025.05+dfsg-3
2025.12+dfsg-1
2025.12+dfsg-2~bpo13+1
2025.12+dfsg-2
2025.12+dfsg-3
2025.12+dfsg-4
2025.12+dfsg-5
2025.12+dfsg-6
2025.12+dfsg-7~bpo13+1
2025.12+dfsg-7
2025.12+dfsg-8
2025.12+dfsg-9
2025.12+dfsg-10~bpo13+1
2025.12+dfsg-10~bpo13+2
2025.12+dfsg-10
2026.*
2026.05+dfsg-1
2026.05+dfsg-2
2026.05+dfsg-3~bpo13+1
2026.05+dfsg-3
2026.05+dfsg-4
2026.05.1+dfsg-1~bpo13+1
2026.05.1+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6985.json"

Debian:13 / swupdate

Package

Name
swupdate
Purl
pkg:deb/debian/swupdate?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2024.*
2024.12.1+dfsg-3
2024.12.1+dfsg-3+deb13u1
2024.12.1+dfsg-3+deb13u2
2025.*
2025.05+dfsg-1
2025.05+dfsg-2~bpo13+1
2025.05+dfsg-2
2025.05+dfsg-3~bpo13+1
2025.05+dfsg-3
2025.12+dfsg-1
2025.12+dfsg-2~bpo13+1
2025.12+dfsg-2
2025.12+dfsg-3
2025.12+dfsg-4
2025.12+dfsg-5
2025.12+dfsg-6
2025.12+dfsg-7~bpo13+1
2025.12+dfsg-7
2025.12+dfsg-8
2025.12+dfsg-9
2025.12+dfsg-10~bpo13+1
2025.12+dfsg-10~bpo13+2
2025.12+dfsg-10
2026.*
2026.05+dfsg-1
2026.05+dfsg-2
2026.05+dfsg-3~bpo13+1
2026.05+dfsg-3
2026.05+dfsg-4
2026.05.1+dfsg-1~bpo13+1
2026.05.1+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6985.json"

Debian:14 / swupdate

Package

Name
swupdate
Purl
pkg:deb/debian/swupdate?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2025.12+dfsg-10

Affected versions

2024.*
2024.12.1+dfsg-3
2025.*
2025.05+dfsg-1
2025.05+dfsg-2~bpo13+1
2025.05+dfsg-2
2025.05+dfsg-3~bpo13+1
2025.05+dfsg-3
2025.12+dfsg-1
2025.12+dfsg-2~bpo13+1
2025.12+dfsg-2
2025.12+dfsg-3
2025.12+dfsg-4
2025.12+dfsg-5
2025.12+dfsg-6
2025.12+dfsg-7~bpo13+1
2025.12+dfsg-7
2025.12+dfsg-8
2025.12+dfsg-9
2025.12+dfsg-10~bpo13+1
2025.12+dfsg-10~bpo13+2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6985.json"