SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-1000121

A NULL pointer dereference exists in curl 7.21.0 to and including curl 7.58.0 in the LDAP code that allows an attacker to cause a denial of service

HIGH 7.5EPSS 9.21%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (9.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A NULL pointer dereference exists in curl 7.21.0 to and including curl 7.58.0 in the LDAP code that allows an attacker to cause a denial of service

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
9.21% probability · 95th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-476
Affected
debian/debian linux · canonical/ubuntu linux · haxx/curl · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation · oracle/communications webrtc session controller · oracle/enterprise manager ops center · oracle/peoplesoft enterprise peopletools
Source
cve@mitre.org
EPSS trend
0%5%10%27 October 2026: 9.21%27 October 202627 October 2026

EPSS 9.2% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.