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Public proof of concept

CVE-2018-8474

A public proof of concept exists; no exploitation attested.

  • Published2018-09-13
  • WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A security feature bypass vulnerability exists when Lync for Mac 2011 fails to properly sanitize specially crafted messages, aka "Lync for Mac 2011 Security Feature Bypass Vulnerability." This affects Microsoft Lync.

Timeline

dates in UTC
  1. 2018-12-04Exploit-DB entryExploit-DB

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-8474?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-8474?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Microsoft lync for mac
BranchAffectedFixed in
2011.x= 2011no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-45936
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.07.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • NVDweakness (CWE)CWE-20read 2026-10-23
  • FIRST EPSSEPSS score38.2 %read 2026-11-02
  • Exploit-DBdetectionread 2026-11-02

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2018-09-13
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2018-8474?

A security feature bypass vulnerability exists when Lync for Mac 2011 fails to properly sanitize specially crafted messages, aka "Lync for Mac 2011 Security Feature Bypass Vulnerability." This affects Microsoft Lync.

Is CVE-2018-8474 actively exploited?

Active exploitation of CVE-2018-8474 has not been confirmed. Its EPSS score was 38.2% on 2026-11-02, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-8474?

CVE-2018-8474 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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