CVE catalog

CVE-2026-15813

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Published: Jul 15, 2026, 11:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.36% · Oct 25, 2026

A vulnerability was found in the network packet de-fragmentation engine of kronosnet (Version affected <= 1.34). The internal reassembly code does not properly validate sequence numbers of incoming payload fragments. An attacker can exploit this lack of verification by transmitting malformed packets with corrupted sequence parameters. Under specific conditions, this forces the packet processing layer to parse data outside the designated bounds of the internal memory structures, causing an out-of-bounds memory access or heap corruption. This behavior can result in sudden application crashes or system instability.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	kronosnet	sid	`1.35-1`	fixed
Debian	kronosnet	forky	`1.35-1`	fixed
Debian	kronosnet	trixie	`1.31-1`	vulnerable
Debian	kronosnet	bookworm	`1.25-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	kronosnet	source	sid	`1.35-1`	not yet assigned	Not reported	[1142847]
Debian	kronosnet	source	forky	`1.35-1`	not yet assigned	Not reported	[1142847]
Debian	kronosnet	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1142847]
Debian	kronosnet	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1142847]

[Debian bug #1142847]

Notes

[trixie] kronosnet: Minor issue [bookworm] kronosnet: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libknet1]Affected
Source package: [kronosnet]
Details (2)
- 1.25-1 · amd64 · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
- 1.25-1 · arm64 · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
[libknet-dev]Affected
Source package: [kronosnet]
Details (2)
- 1.25-1 · amd64 · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
- 1.25-1 · arm64 · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
[libknet-doc]Affected
Source package: [kronosnet]
Details (2)
- 1.25-1 · all · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
- 1.25-1 · all · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
[libnozzle1]Affected
Source package: [kronosnet]
Details (2)
- 1.25-1 · amd64 · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
- 1.25-1 · arm64 · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
[libnozzle-dev]Affected
Source package: [kronosnet]
Details (2)
- 1.25-1 · amd64 · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12
- 1.25-1 · arm64 · bookworm
  Affected
  nvd · kronosnet · debian · bookworm; nvd · kronosnet · debian · 12

[Debian 13 (Trixie)]

[libknet1t64]Affected
Source package: [kronosnet]
Details (2)
- 1.31-1 · amd64 · trixie
  Affected
  nvd · kronosnet · debian · 13
- 1.31-1 · arm64 · trixie
  Affected
  nvd · kronosnet · debian · 13
[libknet-dev]Affected
Source package: [kronosnet]
Details (2)
- 1.31-1 · amd64 · trixie
  Affected
  nvd · kronosnet · debian · 13
- 1.31-1 · arm64 · trixie
  Affected
  nvd · kronosnet · debian · 13
[libknet-doc]Affected
Source package: [kronosnet]
Details (2)
- 1.31-1 · all · trixie
  Affected
  nvd · kronosnet · debian · 13
- 1.31-1 · all · trixie
  Affected
  nvd · kronosnet · debian · 13
[libnozzle1t64]Affected
Source package: [kronosnet]
Details (2)
- 1.31-1 · amd64 · trixie
  Affected
  nvd · kronosnet · debian · 13
- 1.31-1 · arm64 · trixie
  Affected
  nvd · kronosnet · debian · 13
[libnozzle-dev]Affected
Source package: [kronosnet]
Details (2)
- 1.31-1 · amd64 · trixie
  Affected
  nvd · kronosnet · debian · 13
- 1.31-1 · arm64 · trixie
  Affected
  nvd · kronosnet · debian · 13

Observed: Oct 23, 2026, 9:44:04 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]