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CVE-2001-0816

24
FAUCET Score

CVE-2001-0816 describes a vulnerability in OpenSSH versions prior to 2.9.9, specifically affecting the sftp-server when configured with restricted keypairs. Authenticated remote users could bypass authorized_keys2 command restrictions through sftp commands. This vulnerability carries a high severity CVSS score of 7.5, indicating a network-based attack with low complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code, the vulnerability has garnered significant community discussion, with 10 mentions, suggesting awareness among security professionals.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.9.9CPE matchmatch criteria
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.79%
Probability of exploitation in next 30 days
EPSS Percentile
76.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0179 is in the 59th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch

Vendor Advisories (1)

redhatCVE-2001-0816

security flaw

Sep 18, 2001

References

archives.neohapsis.com / archives/bugtraq/2001-09/0153.html
PatchVendor Advisory
distro.conectiva.com.br / atualizacoes
download.immunix.org / ImmunixOS/7.0/updates/IMNX-2001-70-034-01
exchange.xforce.ibmcloud.com / vulnerabilities/7634
osvdb.org / 5536
redhat.com / support/errata/RHSA-2001-154.html