CVE-2026-41416Network attack vector

Application crash or memory corruption via size overflow

Published Apr 24, 2026 · Updated Apr 24, 2026

Integer overflow in Teluu PJPROJECT 2.16 and earlier allows remote attackers to crash applications or corrupt memory through crafted SDP. In pjmedia_stream_create, pjmedia multiplies the codec clock rate by an asymmetric packetization time before division, allowing the intermediate value to overflow and producing an undersized encoder-buffer allocation. Exposure requires an application to process an incoming SDP offer or answer whose audio codec uses asymmetric ptime; triggering the flaw terminates the application or corrupts its memory.

CVSS severity7.5
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Teluu PJPROJECT 2.16 and earlier allows remote attackers to crash applications or corrupt memory through crafted SDP. In pjmedia_stream_create, pjmedia multiplies the codec clock rate by an asymmetric packetization time before division, allowing the intermediate value to overflow and producing an undersized encoder-buffer allocation. Exposure requires an application to process an incoming SDP offer or answer whose audio codec uses asymmetric ptime; triggering the flaw terminates the application or corrupts its memory.

The record

CVE
CVE-2026-41416
Published
Apr 24, 2026
Updated
Apr 24, 2026
Vendor
PJSIP
Product
PJPROJECT
Classifications
CWE-190, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PJSIP · PJPROJECTversion=< 2.17

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.1GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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