TI-2026-11515 Aliases CVE-2026-13592 GHSA-xxw5-vgjv-jc6g

liftoff-sr CIPster EtherNet IP Message append out-of-bounds write

HIGH 70CWE-119Published 2026-06-29 · Updated 2026-07-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A vulnerability was detected in liftoff-sr CIPster up to e8e9dba09bf56962807d3504b783ccdb6287f3e4. Affected by this issue is the function BufWriter::append of the component EtherNet IP Message Handler. Performing a manipulation results in out-of-bounds write. Remote exploitation of the attack is possible. The exploit is now public and may be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The patch is named 3a0159ed43125dcd024a1965f0289cb186bae9ff. To fix this issue, it is recommended to deploy a patch.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00638 50th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
liftoff-sr	CIPster	e8e9dba	—	No fix listed	CNA

CIPster Vendorliftoff-sr Affected e8e9dba Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:liftoff-sr:cipster::::::::	—	—	—

cpe:2.3:a:liftoff-sr:cipster:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-13592
2026-10-03 Alias added: GHSA-xxw5-vgjv-jc6g
2026-10-25 EPSS moved to the 50th–90th percentile

References

Exploit 1

https://github.com/user-attachments/files/28452971/poc.zip

Patch 1

https://github.com/liftoff-sr/CIPster/commit/3a0159ed43125dcd024a1965f0289cb186bae9ff

Other 3

TI-2026-53776 liftoff-sr CIPster TCP Encapsulation Receive Path encap.cc out-of-bounds CVSS 4.0MEDIUM 6.9
TI-2026-53775 liftoff-sr CIPster ForwardOpen cipconnectionmanager.cc forward_open out-of-bounds CVSS 4.0MEDIUM 6.9
TI-2026-53774 liftoff-sr CIPster Generic Attribute Logic ciptypes.h SetAttrData memory corruption CVSS 4.0MEDIUM 6.9
TI-2026-13406 liftoff-sr CIPster cipepath.cc deserialize_symbolic out-of-bounds CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences