DEBIAN-CVE-2026-115505

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Source
https://security-tracker.debian.org/tracker/CVE-2026-115505
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-115505.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-115505
Upstream
Published
2026-10-22T20:17:06Z
Modified
2026-10-24T09:47:34Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H CVSS Calculator
Summary
[none]
Details

libsmb2 before 6.3 contains integer overflow vulnerabilities in the DCE/RPC NDR decoder in lib/dcerpc.c that allow heap out-of-bounds reads and writes. A malicious SMB server or machine-in-the-middle on unsigned connections can send crafted NetrShareEnum replies with wrapping actual_count or max_count values when clients call smb2_share_enum_async(), corrupting heap memory.

References

Affected packages

Debian:13 / libsmb2

Package

Name
libsmb2
Purl
pkg:deb/debian/libsmb2?arch=source&distro=trixie

Affected ranges

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

Affected versions

6.*
6.2+dfsg-2
6.2+dfsg-2+deb13u1
6.2+dfsg-3
6.2+dfsg-4

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-115505.json"

Debian:14 / libsmb2

Package

Name
libsmb2
Purl
pkg:deb/debian/libsmb2?arch=source&distro=forky

Affected ranges

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

Affected versions

6.*
6.2+dfsg-2
6.2+dfsg-3
6.2+dfsg-4

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-115505.json"