CVE-2021-3423
CVE-2021-3423 is a high-severity vulnerability in Bitdefender Gravityzone Business Security with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-427.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-427
- Affected product: Bitdefender Gravityzone Business Security
- Published:
- Last modified:
Description
Uncontrolled Search Path Element vulnerability in the openssl component as used in Bitdefender GravityZone Business Security allows an attacker to load a third party DLL to elevate privileges. This issue affects Bitdefender GravityZone Business Security versions prior to 6.6.23.329.
Frequently asked questions
- What is CVE-2021-3423?
- Uncontrolled Search Path Element vulnerability in the openssl component as used in Bitdefender GravityZone Business Security allows an attacker to load a third party DLL to elevate privileges. This issue affects Bitdefender GravityZone Business Security versions prior to 6.6.23.329.
- How severe is CVE-2021-3423?
- CVE-2021-3423 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-3423 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-3423?
- CVE-2021-3423 affects Bitdefender Gravityzone Business Security. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-3423?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-3423 published?
- CVE-2021-3423 was published on 2021-05-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:bitdefender:gravityzone_business_security:*:*:*:*:*:*:*:*
Other CWE-427 (Uncontrolled Search Path Element) vulnerabilities
- CVE-2025-4981 — Critical (CVSS 9.9): Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to…
- CVE-2025-69599 — Critical (CVSS 9.8): RayVentory Scan Engine through 12.6 Update 8 allows attackers to gain privileges if they control the value of the PATH…
- CVE-2019-25268 — Critical (CVSS 9.8): NREL BEopt 2.8.0.0 contains a DLL hijacking vulnerability that allows attackers to load arbitrary libraries by tricking…
- CVE-2023-53959 — Critical (CVSS 9.8): FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by…
- CVE-2025-65741 — Critical (CVSS 9.8): Sublime Text 3 Build 3208 or prior for MacOS is vulnerable to Dylib Injection. An attacker could compile a .dylib file…
- CVE-2024-23054 — Critical (CVSS 9.8): An issue in Plone Docker Official Image 5.2.13 (5221) open-source software that could allow for remote code execution…
Browse all CWE-427 (Uncontrolled Search Path Element) vulnerabilities →