CVE-2018-16842

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 81.3% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-10-31 19:00Z7 YR AGO

Last updated

2026-04-15 20:56Z6 MO AGO

Reserved

2018-09-11

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 4.4)

CNA CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

90eb4c50b55d96a1a035b1f34fd1a0036469e64ab0eb30d53902c7c96d80d2a7

• security.gentoo.orgGLSA-201903-03https://security.gentoo.org/glsa/201903-03vendor-advisoryx_refsource_GENTOO
• www.debian.orgDSA-4331https://www.debian.org/security/2018/dsa-4331vendor-advisoryx_refsource_DEBIAN
• lists.debian.org[debian-lts-announce] 20181106 [SECURITY] [DLA 1568-1] curl security updatehttps://lists.debian.org/debian-lts-announce/2018/11/msg00005.htmlmailing-listx_refsource_MLIST
• curl.haxx.sehttps://curl.haxx.se/docs/CVE-2018-16842.htmlx_refsource_MISC
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16842x_refsource_CONFIRM
• www.securitytracker.com1042014http://www.securitytracker.com/id/1042014vdb-entryx_refsource_SECTRACK
• github.comhttps://github.com/curl/curl/commit/d530e92f59ae9bb2d47066c3c460b25d2ffeb211x_refsource_CONFIRM
• usn.ubuntu.comUSN-3805-2https://usn.ubuntu.com/3805-2/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-3805-1https://usn.ubuntu.com/3805-1/vendor-advisoryx_refsource_UBUNTU
• access.redhat.comRHSA-2019:2181https://access.redhat.com/errata/RHSA-2019:2181vendor-advisoryx_refsource_REDHAT
• www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlx_refsource_MISC