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CVE-2023-27857

32
FAUCET Score

CVE-2023-27857 is a heap-based buffer over-read vulnerability in Rockwell Automation's ThinManager ThinServer. An unauthenticated remote attacker can exploit this flaw by sending a crafted message that causes ThinServer.exe to crash due to a read access violation. With a CVSS score of 7.5 (HIGH), this vulnerability has a low attack complexity and requires no user interaction, leading to a denial-of-service impact. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.0.0, < 11.0.5CPE matchmatch criteria
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
>= 11.1.0, < 11.1.5CPE matchmatch criteria
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
>= 11.2.0, < 11.2.6CPE matchmatch criteria
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
>= 12.0.0, < 12.0.3CPE matchmatch criteria
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
>= 12.1.0, < 12.1.4CPE matchmatch criteria
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
18.34%
Probability of exploitation in next 30 days
EPSS Percentile
96.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1834 is in the 95th percentile among its peer group of 51,551 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 (5)

bentomlpatch availablevia llm_extracted
Fixed in: 11.0.6, 11.1.6, 11.2.7, 12.0.5, 12.1.6, 13.0.2
View patch
jfrogvendor investigatingvia llm_extracted
lfedgevendor investigatingvia llm_extracted
linkacevendor investigatingvia llm_extracted
markusprojectvendor investigatingvia llm_extracted

Vendor Advisories (5)

jfrogllm-jfrog-9f95974196df67e7CRITICAL

Rockwell Automation ThinManager ThinServer Multiple Vulnerabilities

Mar 21, 2023
lfedgellm-lfedge-2246fb2b4ed9fb85CRITICAL

Rockwell Automation ThinManager ThinServer Multiple Vulnerabilities

Mar 21, 2023
markusprojectllm-markusproject-1dc1d35e2f413a2cCRITICAL

Rockwell Automation ThinManager ThinServer Multiple Vulnerabilities

Mar 21, 2023
linkacellm-linkace-e0e37a1015d6729aCRITICAL

Rockwell Automation ThinManager ThinServer Multiple Vulnerabilities

Mar 21, 2023
bentomlllm-bentoml-5b3ebc99e0b683f2

Multiple Vulnerabilities in ThinManager ThinServer software

References

rockwellautomation.custhelp.com / app/answers/answer_view/a_id/1138640
Vendor Advisory