CVE-2023-49938Network attack vector

Arbitrary file overwrite via modified sbcast groups

Published Dec 14, 2023 · Updated Nov 4, 2025

Incorrect access control in SchedMD Slurm 22.05.x and 23.02.x allows remote attackers to open files with unauthorized group permissions. The sbcast subsystem accepts a modified extended-group list from an RPC and uses it when opening the requested file instead of enforcing the caller's authorized groups. Network reachability to the affected RPC path is sufficient, and exploitation permits file access or overwrite under group identities the attacker does not hold.

CVSS severity8.2
High
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in SchedMD Slurm 22.05.x and 23.02.x allows remote attackers to open files with unauthorized group permissions. The sbcast subsystem accepts a modified extended-group list from an RPC and uses it when opening the requested file instead of enforcing the caller's authorized groups. Network reachability to the affected RPC path is sufficient, and exploitation permits file access or overwrite under group identities the attacker does not hold.

The record

CVE
CVE-2023-49938
Published
Dec 14, 2023
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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