CVE-2021-26421
published 2021-05-11CVE-2021-26421: Skype for Business and Lync Spoofing Vulnerability
PriorityP430high7.1CVSS 3.1
AVNACLPRNUIRSUCHILAN
EPSS
1.41%
69.5th percentile
Skype for Business and Lync Spoofing Vulnerability
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | lync_server | — | — |
| microsoft | microsoft_lync_server_2013_cu10 | >= 8308.0 < 8308.1144 | 8308.1144 |
| microsoft | skype_for_business_server | — | — |
| microsoft | skype_for_business_server_2015_cu11 | >= 2015 CU11 < 2046.369 | 2046.369 |
| msrc | microsoft_lync_server_2013_cu10 | — | — |
| msrc | skype_for_business_server_2015_cu11 | — | — |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
nvdv2.05.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
vendor_msrc6.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-w6mv-8x3w-r7w5: Skype for Business and Lync Spoofing Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-26421 [HIGH] GHSA-w6mv-8x3w-r7w5: Skype for Business and Lync Spoofing Vulnerability
Skype for Business and Lync Spoofing Vulnerability
Microsoft
Skype for Business and Lync Spoofing Vulnerability
vendor_msrc·2021-05-11·CVSS 6.5
CVE-2021-26421 [MEDIUM] Skype for Business and Lync Spoofing Vulnerability
Skype for Business and Lync Spoofing Vulnerability
Skype for Business and Microsoft Lync: Skype for Business and Microsoft Lync
Microsoft: Microsoft
Impact: Spoofing
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://www.microsoft.com/download/details.aspx?familyid=de77f3bc-efd5-4dab-a2fb-81e2894b0937
Reference: https://www.microsoft.com/download/details.aspx?familyid=dac7c777-fe8a-45a2-9a82-07a2e15c298f
No detection rules found.
No public exploits indexed.
2021-05-11
Published