SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-8818

curl and libcurl before 7.57.0 on 32-bit platforms allow attackers to cause a denial of service (out-of-bounds access and application crash) or possibly have unspecified other impact because too little memory is allocated for interfacing to an SSL…

CRITICAL 9.8EPSS 3.41%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

curl and libcurl before 7.57.0 on 32-bit platforms allow attackers to cause a denial of service (out-of-bounds access and application crash) or possibly have unspecified other impact because too little memory is allocated for interfacing to an SSL library.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
3.41% probability · 89th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Affected
haxx/curl · haxx/libcurl
Source
security@debian.org
EPSS trend
0%3%5%27 October 2026: 3.41%27 October 202627 October 2026

EPSS 3.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

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