seladb PcapPlusPlus Telnet Subnegotiation Packet TelnetLayer.cpp getSubCommand heap-based overflow

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Summary

CVECVE-2026-13589
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-29 17:16:28 UTC
Updated2026-06-29 18:47:21 UTC
DescriptionA vulnerability was identified in seladb PcapPlusPlus 25.05. This affects the function pcpp::TelnetLayer::getSubCommand of the file Packet++/src/TelnetLayer.cpp of the component Telnet Subnegotiation Packet Handler. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is reported as difficult. The exploit is publicly available and might be used. The identifier of the patch is 98e671010bc7c87b95898c22ae289220ae92542b. It is recommended to apply a patch to fix this issue.

Risk And Classification

Primary CVSS: v4.0 2.9 LOW from [email protected]

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-119 | CWE-122 | CWE-122 Heap-based Buffer Overflow | CWE-119 Memory Corruption

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary2.9LOWCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED6.3MEDIUMCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.1[email protected]Secondary5.6MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
3.1CNADECLARED5.6MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3.0CNADECLARED5.6MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2.0[email protected]Secondary5.1AV:N/AC:H/Au:N/C:P/I:P/A:P
2.0CNADECLARED5.1AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

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

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Seladb PcapPlusPlus affected 25.05 Not specified

References

ReferenceSourceLinkTags
github.com/seladb/PcapPlusPlus/commit/98e671010bc7c87b95898c22ae289220ae... [email protected] github.com
vuldb.com/vuln/374592 [email protected] vuldb.com
github.com/seladb/PcapPlusPlus/pull/2161 [email protected] github.com
vuldb.com/cve/CVE-2026-13589 [email protected] vuldb.com
vuldb.com/vuln/374592/cti [email protected] vuldb.com
vuldb.com/submit/844482 [email protected] vuldb.com
github.com/seladb/PcapPlusPlus [email protected] github.com
github.com/user-attachments/files/28214571/poc.zip [email protected] github.com
github.com/seladb/PcapPlusPlus/issues/2152 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: TYGLS (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-06-29T00:00:00.000ZAdvisory disclosed
CNA2026-06-29T02:00:00.000ZVulDB entry created
CNA2026-06-29T06:30:48.000ZVulDB entry last update
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