How severe is GHSA-x77x-7mmh-cxv3?

No CVSS score has been assigned to GHSA-x77x-7mmh-cxv3 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-x77x-7mmh-cxv3?

GHSA-x77x-7mmh-cxv3 affects the following packages: ncurses (crates.io). Ecosystems affected: crates.io.

How do I fix GHSA-x77x-7mmh-cxv3?

The records we use list no patched version of ncurses for GHSA-x77x-7mmh-cxv3. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

How do I detect GHSA-x77x-7mmh-cxv3 in my crates.io dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ncurses, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-x77x-7mmh-cxv3 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is GHSA-x77x-7mmh-cxv3 actively exploited in the wild?

No public exploit code has been indexed for GHSA-x77x-7mmh-cxv3 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-x77x-7mmh-cxv3 published, and has it been updated?

GHSA-x77x-7mmh-cxv3 was published on October 22, 2025 and was last updated on October 28, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🦀 crates.io

Not in CISA KEV

ncurses exposes uninitialized memory in string reading functionsGHSA-x77x-7mmh-cxv3

Fix: RustSec/advisory-db#2427

GHSA-x77x-7mmh-cxv3 is a security vulnerability in ncurses. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Also known asRUSTSEC-2025-0108

Published

Oct 22, 2025

Updated

Oct 28, 2025

Affected

1 pkg

Patched

See advisory

Exploits

None indexed

Exploitation data as of Oct 28, 2025 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🦀ncurses

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.

Description

Multiple string reading functions expose uninitialized memory by setting length to capacity when no null terminator is found.

This allows reading uninitialized memory which may contain sensitive data from previous allocations.

The ncurses-rs repository is archived and unmaintained.

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
🦀crates.io	`ncurses`	all versions	No fix

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ncurses, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of ncurses for GHSA-x77x-7mmh-cxv3. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

Multiple string reading functions expose uninitialized memory by setting length to capacity when no null terminator is found. This allows reading uninitialized memory which may contain sensitive data from previous allocations. The ncurses-rs repository is archived and unmaintained.

O3 Security · Impact-Aware SCA

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