CVE-2021-34527Not scored

CVE-2021-34527

Vendor not yet named

No fix listed · Exploitation: public proof of concept (unverified)

ExploitationProof of concept public

Not in CISA KEV as of catalogue 2026.11.13 (13 Nov)

In CISA KEV: not seen
Exploited (reported): not seen
Scanning observed: not seen
Proof of concept public30 public GitHub repositories (unverified), listed by PoC-in-GitHub1 Jul 2021
Not established: not seen

No EPSS score yet. The score appears once FIRST publishes it.

Not scored yet. NVD has not published a CVSS score.

NVD has not published a description yet.

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Exploitation: Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.
CISA KEV: Not listed
Public check: No public nuclei template
Vendor: Microsoft
Published: July 2021
Band: Exploited in the wild, July 2021

5 Nov
CISA’s KEV entry now notes known ransomware use CISA
3 Nov 2021
CISA added it to the KEV catalogue CISA
1 Jul 2021
PoC-in-GitHub lists 30 public GitHub repositories (unverified) PoC-in-GitHub

First in our coverage: Securelist, 6 Mar.

6 Mar 10:27
Q4 2025 Exploits Hit Windows and Linux, Spotlight CVE-2025-55182
Securelist · first in our coverage · mentions it in passing

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