CVE-2013-4550

Bip before 0.8.9, when running as a daemon, writes SSL handshake errors to an unexpected file descriptor that was previously associated with stderr before stderr has been closed, which allows remote attackers to write to other sockets and have an unspecified impact via a failed SSL handshake, a different vulnerability than CVE-2011-5268. NOTE: some sources originally mapped this CVE to two different types of issues; this CVE has since been SPLIT, producing CVE-2011-5268.

Published: 2013-12-24 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4550 is rated Moderate Risk (49.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.22%). EPSS rose +1.20% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2013-4550

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 1.02% 2.22% +1.20%
2 2025-03-30 1.41% 1.02% -0.39%
3 2025-03-29 — 1.41% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4550

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.1 2.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 4.9 6.4 [email protected]

Weakness enumeration for CVE-2013-4550

OS Trackers for CVE-2013-4550

vendor priority summary link
debian low CVE-2013-4550 low priority: Debian including 1 source packages (bip), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-4550
ubuntu medium CVE-2013-4550 medium priority: Ubuntu including 1 source packages (bip), 6 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): released 5, ignored 1. https://ubuntu.com/security/CVE-2013-4550

Affected software / configurations for CVE-2013-4550

Vendor Product Version Raw CPE
fedoraproject fedora 18 cpe:2.3:o:fedoraproject:fedora:18:*:*:*:*:*:*:*
fedoraproject fedora 19 cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*
fedoraproject fedora 20 cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
duckcorp bip <= 0.8.8 cpe:2.3:a:duckcorp:bip:*:*:*:*:*:*:*:*
duckcorp bip 0.8.0 cpe:2.3:a:duckcorp:bip:0.8.0:*:*:*:*:*:*:*
duckcorp bip 0.8.0 cpe:2.3:a:duckcorp:bip:0.8.0:rc0:*:*:*:*:*:*
duckcorp bip 0.8.0 cpe:2.3:a:duckcorp:bip:0.8.0:rc1:*:*:*:*:*:*
duckcorp bip 0.8.1 cpe:2.3:a:duckcorp:bip:0.8.1:*:*:*:*:*:*:*
duckcorp bip 0.8.2 cpe:2.3:a:duckcorp:bip:0.8.2:*:*:*:*:*:*:*
duckcorp bip 0.8.3 cpe:2.3:a:duckcorp:bip:0.8.3:*:*:*:*:*:*:*
duckcorp bip 0.8.4 cpe:2.3:a:duckcorp:bip:0.8.4:*:*:*:*:*:*:*
duckcorp bip 0.8.5 cpe:2.3:a:duckcorp:bip:0.8.5:*:*:*:*:*:*:*
duckcorp bip 0.8.6 cpe:2.3:a:duckcorp:bip:0.8.6:*:*:*:*:*:*:*
duckcorp bip 0.8.7 cpe:2.3:a:duckcorp:bip:0.8.7:*:*:*:*:*:*:*

References for CVE-2013-4550

cvelogic Threat Intelligence