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VulnerabilityPublished

CVE-2026-13588: seladb PcapPlusPlus · Heap-based Buffer Overflow

Affects seladb PcapPlusPlusSource CVE Database V5

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Public exploit available · CVSS 6.3 Medium.

Data as of 10 Nov 2026, 23:24 UTC

CVSS 4.0 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
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:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
seladbPcapPlusPlusAffected
  • =25.05
Fixed in–
GitHubseladb/PcapPlusPluspkg:github/seladb/PcapPlusPlusOther threatsAffected
  • =25.05
Fixed in–

CPE configurations (1)

  • cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:*

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

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

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