HOMEVULNERABILITIESCVE-2021-26474
HIGH

CVE-2021-26474

CWE-352Published: June 8, 2021· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

Various Vembu products allow an attacker to execute a (non-blind) http-only Cross Site Request Forgery (Other products or versions of products in this family may be affected too.)

NVD Source

Technical Analysis

CVE-2021-26474 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

vembu2 product(s)
bdr suiteoffsite dr
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://csirt.divd.nl/2021/05/11/Vembu-zero-days/
ADVISORYhttps://csirt.divd.nl/cases/DIVD-2020-00011/
ADVISORYhttps://csirt.divd.nl/cves/CVE-2021-26474/
ADVISORYhttps://www.wbsec.nl/vembu
ADVISORYhttps://csirt.divd.nl/2021/05/11/Vembu-zero-days/
ADVISORYhttps://csirt.divd.nl/cases/DIVD-2020-00011/
ADVISORYhttps://csirt.divd.nl/cves/CVE-2021-26474/
ADVISORYhttps://www.wbsec.nl/vembu

All References (8)

→
https://csirt.divd.nl/2021/05/11/Vembu-zero-days/Third Party Advisory
→
https://csirt.divd.nl/cases/DIVD-2020-00011/Third Party Advisory
→
https://csirt.divd.nl/cves/CVE-2021-26474/Third Party Advisory
→
https://www.wbsec.nl/vembuThird Party Advisory
→
https://csirt.divd.nl/2021/05/11/Vembu-zero-days/Third Party Advisory
→
https://csirt.divd.nl/cases/DIVD-2020-00011/Third Party Advisory
→
https://csirt.divd.nl/cves/CVE-2021-26474/Third Party Advisory
→
https://www.wbsec.nl/vembuThird Party Advisory

Quick Facts

CVE IDCVE-2021-26474
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-352
CISA KEVNo
Affected1 vendor(s)
PublishedJun 8, 2021

Related CVEs (CWE-352)

CVE-2025-32642
10.0
CVE-2017-5145
10.0
CVE-2025-23922
10.0
CVE-2018-18934
9.8
CVE-2016-9866
9.8
CVE-2017-5959
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-26474 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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