VDB
CVE-2021-24073
CVE-2021-24073
PUBLISHED
CVSS 6.5 MEDIUM
Skype for Business and Lync Spoofing Vulnerability
Reported by microsoft · Published February 25, 2021
Skype for Business and Lync Spoofing Vulnerability
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| Skype for Business Server 2015 CU 8 | Microsoft | publication |
| Microsoft Lync Server 2013 | Microsoft | publication |
Risk scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N/E:P/RL:O/RC:C
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Skype for Business Server 2015 CU 8 | 2015 CU 8 |
| Microsoft | Microsoft Lync Server 2013 | 0 |
| Microsoft | Skype for Business Server 2015 CU 8 | * |
| Microsoft | Microsoft Lync Server 2013 | 0 |
Timeline
- Feb 10, 2021 CVE Published
- Apr 14, 2021 EPSS Score (30 in total, the first dated here)
- Mar 10, 2026 Security Advisory (3 in total, the first dated here)
- Aug 23, 2026 Coalition ESS Score
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2021-24073
vulnetix vdb fixes CVE-2021-24073Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2021-24073/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart