CVE-2016-20012

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

5.33% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 91.9% 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:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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

2021-09-15 19:32Z4 YR AGO

Last updated

2026-05-29 15:38Z3 MO AGO

Reserved

2021-09-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-203Observable DiscrepancyBase
• CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass

Data version

5.2

Document digest

3388ed6bee25c8224aaa6b00b57356cf3b7e437e19155a575e18a11b00d8ea20

• github.comhttps://github.com/openssh/openssh-portable/pull/270x_refsource_MISC
• github.comhttps://github.com/openssh/openssh-portable/blob/d0fffc88c8fe90c1815c6f4097bc8cbcabc0f3dd/auth2-pubkey.c#L261-L265x_refsource_MISC
• utcc.utoronto.cahttps://utcc.utoronto.ca/~cks/space/blog/tech/SSHKeysAreInfoLeakx_refsource_MISC
• rushter.comhttps://rushter.com/blog/public-ssh-keys/x_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20211014-0005/x_refsource_CONFIRM
• github.comhttps://github.com/openssh/openssh-portable/pull/270#issuecomment-920577097x_refsource_MISC
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2018/08/24/1x_refsource_MISC
• github.comhttps://github.com/openssh/openssh-portable/pull/270#issuecomment-943909185x_refsource_MISC