CVE-2009-0126

Exp

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.

Published: 2009-01-15 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-0126 is rated High Exploit Risk (65.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.42%). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.92% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-0126

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-0126

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.50% 2.42% +1.92%
2 2025-03-30 1.54% 0.50% -1.04%
3 2025-03-29 — 1.54% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-0126

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-0126

OS Trackers for CVE-2009-0126

vendor priority summary link
debian not yet assigned CVE-2009-0126 not yet assigned priority: Debian including 1 source packages (boinc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-0126
redhat high — https://access.redhat.com/security/cve/CVE-2009-0126
ubuntu medium CVE-2009-0126 medium priority: Ubuntu including 1 source packages (boinc), 11 status rows across 11 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): not-affected 6, ignored 4, released 1. https://ubuntu.com/security/CVE-2009-0126

Affected software / configurations for CVE-2009-0126

Vendor Product Version Raw CPE
berkeley boinc_client 6.2.14 cpe:2.3:a:berkeley:boinc_client:6.2.14:*:*:*:*:*:*:*
berkeley boinc_client 6.4.5 cpe:2.3:a:berkeley:boinc_client:6.4.5:*:*:*:*:*:*:*

References for CVE-2009-0126

cvelogic Threat Intelligence