CVE-2025-48756: In group_number in the scsir crate 0.2.0 for Rust, there can be an overflow because a hardware device may expe

Routine

LOW 2.9DOWNGRADE

CVE-2025-48756 is a low-severity flaw (CVSS 2.9) affecting scsir. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In group_number in the scsir crate 0.2.0 for Rust, there can be an overflow because a hardware device may expect a small number of bits (e.g., 5 bits) for group number.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	2.9 (Low)
Attack vector	Local
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-843
Published	2025-05-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: crates

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-24 03:15 UTCPublished CVE record published
2026-06-17 09:30 UTCUpdated Record last modified

crates scsir DOWNGRADE

Affected: 0.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.2.0

1. Check installed version

apt-cache policy scsir || rpm -q scsir || scsir --version

2. No fixed release: DOWNGRADE to a release before 0.2.0 (Debian / Ubuntu)

apt-cache madison scsir sudo apt install scsir=<VERSION_BEFORE_0.2.0> sudo apt-mark hold scsir

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list scsir sudo dnf downgrade scsir-<VERSION_BEFORE_0.2.0> sudo dnf versionlock add scsir

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-48756?

scsir: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-48756 being exploited?

CVE-2025-48756 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-48756 affect?

CVE-2025-48756 affects scsir. Severity is low (CVSS 2.9). In group_number in the scsir crate 0.2.0 for Rust, there can be an overflow because a hardware device may expect a small number of bits (e.g., 5 bits) for group number.

How urgent is CVE-2025-48756?

Priority 22/100. Public exploit reference

References

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