CVE-2009-0126
CVE-2009-0126 is a medium-severity vulnerability in Berkeley Boinc Client with a CVSS 2.0 base score of 5.0. 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-287.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 2% (82nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Berkeley Boinc Client
- Published:
- Last modified:
Description
The decrypt_public function in lib/crypt.cpp in the client in Berkeley Open Infrastructure for Network Computing (BOINC) 6.2.14 and 6.4.5 does not check the return value from the OpenSSL RSA_public_decrypt function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.
Frequently asked questions
- What is CVE-2009-0126?
- The decrypt_public function in lib/crypt.cpp in the client in Berkeley Open Infrastructure for Network Computing (BOINC) 6.2.14 and 6.4.5 does not check the return value from the OpenSSL RSA_public_decrypt function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.
- How severe is CVE-2009-0126?
- CVE-2009-0126 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2009-0126 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-0126?
- CVE-2009-0126 primarily affects Berkeley Boinc Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2009-0126?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2009-0126 published?
- CVE-2009-0126 was published on 2009-01-15 and last updated on 2026-06-16.
References
- http://boinc.berkeley.edu/trac/changeset/16883
- http://boinc.berkeley.edu/trac/ticket/823
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511521
- http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html
- http://openwall.com/lists/oss-security/2009/01/12/4
- http://secunia.com/advisories/33806
- http://secunia.com/advisories/33828
- https://bugzilla.redhat.com/show_bug.cgi?id=479664
- https://www.redhat.com/archives/fedora-package-announce/2009-February/msg00034.html
Affected products (2)
- cpe:2.3:a:berkeley:boinc_client:6.2.14:*:*:*:*:*:*:*
- cpe:2.3:a:berkeley:boinc_client:6.4.5:*:*:*:*:*:*:*
Other CWE-287 (Improper Authentication) vulnerabilities
- CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
- CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
- CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
- CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
- CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…
Browse all CWE-287 (Improper Authentication) vulnerabilities →