VulnerabilityModified

CVE-1999-0073

Telnet allows a remote client to specify environment variables including LD_LIBRARY_PATH, allowing an attacker to bypass the normal system libraries and gain root access.

HIGH 10.0EPSS 3.11%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Telnet allows a remote client to specify environment variables including LD_LIBRARY_PATH, allowing an attacker to bypass the normal system libraries and gain root access.

CVSS 2.0: 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS: 3.11% probability · 87th percentile
CISA KEV: Not listed
Affected: sgi/irix · digital/osf 1 · digital/unix
Source: cve@mitre.org

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0073
http://www.openwall.com/lists/oss-security/2026/02/24/3
http://www.openwall.com/lists/oss-security/2026/03/07/3
http://www.openwall.com/lists/oss-security/2026/03/08/6
https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0073

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.