CVE-2018-20685

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

3.68% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 88.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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

2019-01-10 00:00Z7 YR AGO

Last updated

2025-12-17 21:53Z8 MO AGO

Reserved

2019-01-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-863Incorrect AuthorizationClass
• CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

03ea71caea98d93dbbb84c9a6061903fdfc2e24794fab7153288974d11582c0c

• www.debian.orgDSA-4387https://www.debian.org/security/2019/dsa-4387vendor-advisory
• usn.ubuntu.comUSN-3885-1https://usn.ubuntu.com/3885-1/vendor-advisory
• github.comhttps://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2
• cvsweb.openbsd.orghttps://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20190215-0001/
• www.securityfocus.com106531http://www.securityfocus.com/bid/106531vdb-entry
• sintonen.fihttps://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
• security.gentoo.orgGLSA-201903-16https://security.gentoo.org/glsa/201903-16vendor-advisory
• lists.debian.org[debian-lts-announce] 20190325 [SECURITY] [DLA 1728-1] openssh security updatehttps://lists.debian.org/debian-lts-announce/2019/03/msg00030.htmlmailing-list
• www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
• www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
• access.redhat.comRHSA-2019:3702https://access.redhat.com/errata/RHSA-2019:3702vendor-advisory
• security.gentoo.orgGLSA-202007-53https://security.gentoo.org/glsa/202007-53vendor-advisory
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf