CVE-2014-0160

KEVOpenSSL Information Disclosure Vulnerability

Description

The TLS and DTLS implementations in OpenSSL do not properly handle Heartbeat Extension packets, which allows remote attackers to obtain sensitive information.

The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remote attackers to obtain sensitive information from process memory via crafted packets that trigger a buffer over-read, as demonstrated by reading private keys, related to d1_both.c and t1_lib.c, aka the Heartbleed bug.

CVSS 3.1 vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

PublishedApr 7, 2014

Last modifiedJun 17, 2026

Added to KEVMay 4, 2022

Remediation dueMay 25, 2022

References

advisories.mageia.org/MGASA-2014-0165.htmlThird Party Advisory
blog.fox-it.com/2014/04/08/openssl-heartbleed-bug-live-blog/Issue TrackingThird Party Advisory
cogentdatahub.com/ReleaseNotes.htmlRelease Notes
download.schneider-electric.com/files?p_Doc_Ref=SEVD%202014-119-01Broken Link
git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=96db9023b881d7cd9f379b0c154650d6c108e9a3Broken Link
heartbleed.comThird Party Advisory
lists.fedoraproject.org/pipermail/package-announce/2014-April/131221.htmlBroken LinkThird Party Advisory
lists.fedoraproject.org/pipermail/package-announce/2014-April/131291.htmlBroken LinkThird Party Advisory
lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.htmlMailing ListThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2014-04/msg00004.htmlMailing ListThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2014-04/msg00005.htmlMailing ListThird Party Advisory
lists.opensuse.org/opensuse-updates/2014-04/msg00061.htmlMailing ListThird Party Advisory

0 recent articles mention this CVE

Risk assessment · High

Actively exploited. Patch immediately.

Exploitation: Confirmed in the wild (CISA KEV)
Federal remediation deadline: Overdue by 1616 days
CVSS: 7.5 HIGH
EPSS (30-day exploit probability): 100.0% · top 1% of all CVEs
Weakness: CWE-125
Attack vector: Network, remotely reachable
Preconditions: No privileges and no user interaction

Recommended actions

1.Apply updates per vendor instructions.
2.Treat as emergency change: patch or isolate internet-facing instances first.
3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

Assessment is derived automatically from the live signals above; verify against your own asset inventory.