CVE-2024-3119Public exploitNetwork attack vector

Code execution via oversized SIP Call-ID headers

Published Apr 9, 2024 · Updated Aug 8, 2024

Buffer overflow in Irontec sngrep 0.4.2 through 1.8.0 allows remote attackers to execute code or crash the process via crafted SIP headers. The sip_get_callid and sip_get_xcallid functions copy matched Call-ID and X-Call-ID values into 1,024-byte stack buffers without limiting the strncpy length or guaranteeing termination. Exploitation requires the crafted message to appear in traffic captured by sngrep; a successful overwrite permits code execution with the process's privileges or an immediate abort.

CVSS severity9.0
Critical
EPSS probability1.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Irontec sngrep 0.4.2 through 1.8.0 allows remote attackers to execute code or crash the process via crafted SIP headers. The sip_get_callid and sip_get_xcallid functions copy matched Call-ID and X-Call-ID values into 1,024-byte stack buffers without limiting the strncpy length or guaranteeing termination. Exploitation requires the crafted message to appear in traffic captured by sngrep; a successful overwrite permits code execution with the process's privileges or an immediate abort.

The record

CVE
CVE-2024-3119
Published
Apr 9, 2024
Updated
Aug 8, 2024
Vendor
Irontec
Product
sngrep
Classifications
CWE-120, CWE-787, CAPEC-100, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 8, 2024Record 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=0.4.2 <=1.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Irontec · sngrepversion=0.4.2 <=1.8.0

Published CVSS scores

9.0PentrazeCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787Out-of-bounds Write
CAPEC-100Overflow Buffers
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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