CVE-2026-13588: seladb PcapPlusPlus · Heap-based Buffer Overflow
Affects seladb PcapPlusPlusSource CVE Database V5
Public exploit available · CVSS 6.3 Medium.
Data as of 10 Nov 2026, 23:24 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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:PExploitation evidence
Disclosed: evidence found.
CVE published 29 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| seladbPcapPlusPlus | Affected
| Fixed in– |
GitHubseladb/PcapPlusPluspkg:github/seladb/PcapPlusPlusOther threats | Affected
| Fixed in– |
CPE configurations (1)
cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:*
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AI-suggested
A patch addressing this vulnerability is available as identified by commit 98e671010bc7c87b95898c22ae289220ae92542b. It is recommended to apply this patch to seladb PcapPlusPlus version 25.05 to remediate the issue. No vendor advisory content is provided to confirm patch availability beyond this, so verify with the vendor for official fixes or updates. Until patched, exercise caution when processing TLS Hello messages with untrusted input.
Description
A vulnerability was determined in seladb PcapPlusPlus 25.05. The impacted element is the function pcpp::SSLClientHelloMessage::getHandshakeVersion of the file Packet++/src/SSLHandshake.cpp of the component TLS Hello Handler. Executing a manipulation of the argument handshakeVersion can lead to heap-based buffer overflow. It is possible to launch the attack remotely. This attack is characterized by high complexity. The exploitability is regarded as difficult. The exploit has been publicly disclosed and may be utilized. This patch is called 98e671010bc7c87b95898c22ae289220ae92542b. It is best practice to apply a patch to resolve this issue.
References
- vuldb.com/vuln/374591 (opens in a new tab)
- vuldb.com/vuln/374591/cti (opens in a new tab)
- vuldb.com/cve/CVE-2026-13588 (opens in a new tab)
- vuldb.com/submit/844481 (opens in a new tab)
- github.com/seladb/PcapPlusPlus/issues/2151 (opens in a new tab)
- github.com/seladb/PcapPlusPlus/pull/2161 (opens in a new tab)
- github.com/user-attachments/files/28213479/poc.zip (opens in a new tab)
- github.com/seladb/PcapPlusPlus/commit/98e671010bc7c87b95898c22ae289220ae92542b (opens in a new tab)
- github.com/seladb/PcapPlusPlus/ (opens in a new tab)