CVE-2023-53161: The buffered-reader crate before 1.1.5 for Rust allows out-of-bounds array access and a panic.

Routine

LOW 2.9UPGRADE

CVE-2023-53161 is a low-severity flaw (CVSS 2.9) affecting buffered-reader. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The buffered-reader crate before 1.1.5 for Rust allows out-of-bounds array access and a panic.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	2.9 (Low)
Attack vector	Local
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-125
Published	2025-07-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sequoia-pgp

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

Am I affected?

Timeline

2025-07-28 03:15 UTCPublished CVE record published
2026-06-17 06:44 UTCUpdated Record last modified

sequoia-pgp buffered-reader UPGRADE

Affected: < 1.0.2 · >= 1.1.0 and < 1.1.5

Fixed in: 1.0.2, 1.1.5

Safe to downgrade to: a release before 1.1.0

1. Check installed version

apt-cache policy buffered-reader || rpm -q buffered-reader || buffered-reader --version

2. UPGRADE to 1.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade buffered-reader

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade buffered-reader

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.1.0 (Debian / Ubuntu)

apt-cache madison buffered-reader sudo apt install buffered-reader=<VERSION_BEFORE_1.1.0> sudo apt-mark hold buffered-reader

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list buffered-reader sudo dnf downgrade buffered-reader-<VERSION_BEFORE_1.1.0> sudo dnf versionlock add buffered-reader

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-2023-53161?

buffered-reader: upgrade to 1.0.2, 1.1.5. Exact commands for each OS are on this page.

Is CVE-2023-53161 being exploited?

CVE-2023-53161 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-2023-53161 affect?

CVE-2023-53161 affects buffered-reader. Severity is low (CVSS 2.9). The buffered-reader crate before 1.1.5 for Rust allows out-of-bounds array access and a panic.

How urgent is CVE-2023-53161?

Priority 18/100. No elevated risk signals yet.

References

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