CVE-2018-14767

highpriority · attend · 49EPSS 0.293 · 98 %ileEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

29.3% (98th) EPSS

CVSS 7.5 · high

Is it mine?

5 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with a double "To" header and an empty "To" tag causes a segmentation fault and crash. The reason is missing input validation in the "build_res_buf_from_sip_req" core function. This could result in denial of service and potentially the execution of arbitrary code.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (5)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
kamailio kamailio< 5.0.7nvdUScpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:*
kamailio kamailio5.1.0 → 5.1.4nvdUScpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-07-31modified 2026-06-17

related (25,206)

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+25201 more

references (8)

External citations — patches, advisories, analysis.

https://skalatan.de/blog/advisory-hw-2018-05 cnnvd
https://www.kamailio.org/Patchcnnvd
https://lists.debian.org/debian-lts-announce/2018/08/msg00018.html enisa_euvd
https://skalatan.de/blog/advisory-hw-2018-05 enisa_euvd
https://www.debian.org/security/2018/dsa-4267 enisa_euvd
https://lists.debian.org/debian-lts-announce/2018/08/msg00018.htmlMailing ListThird Party Advisorynvd
https://skalatan.de/blog/advisory-hw-2018-05ExploitPatchThird Party Advisorynvd
https://www.debian.org/security/2018/dsa-4267Third Party Advisorynvd

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