A Server-Side Request Forgery (SSRF) vulnerability in the EPPUpdateService component of Bitdefender Endpoint Security Tools allows an attacker to proxy requests to the relay server. This issue affects: Bitdefender Endpoint Security Tools versions prior to 6.6.27.390; versions prior to 7.1.2.33. Bitdefender GravityZone 6.24.1-1.
CVE-2021-3552
MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 1.4%, top 31% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EG Risk
- 29(Track)EG Risk 29/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity53% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 70%
- KEV
- Not listed
Published
November 24, 2021
Last Modified
November 21, 2024
References (2)
- cve-requests@bitdefenderhttps://www.bitdefender.com/support/security-advisories/insufficient-validation-regular-expression-eppupdateservice-config-file-va-9825
- af854a3a-2127-422b-91ae-364da2661108https://www.bitdefender.com/support/security-advisories/insufficient-validation-regular-expression-eppupdateservice-config-file-va-9825
Frequently asked(5)
What is CVE-2021-3552?
CVE-2021-3552 is a medium vulnerability published on November 24, 2021. A Server-Side Request Forgery (SSRF) vulnerability in the EPPUpdateService component of Bitdefender Endpoint Security Tools allows an attacker to proxy requests to the relay server. This issue affects: Bitdefender Endpoint Security Tools versions prior to 6.6.27.390; versions prior to 7.1.2.33.…
When was CVE-2021-3552 disclosed?
CVE-2021-3552 was first published in the National Vulnerability Database on November 24, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-3552 actively exploited?
CVE-2021-3552 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 30.0% of all scored CVEs.
What is the CVSS score of CVE-2021-3552?
CVE-2021-3552 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2021-3552?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-3552, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-3552
Is Your Infrastructure Affected by CVE-2021-3552?
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