berry: Out-of-bounds Read
CVE-2026-3285 is a high-severity out-of-bounds read vulnerability in berry from Berry-lang, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. Affected berry versions: 1.0; 1.1.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.25% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of berry you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Berry-lang | berry | 1.0; 1.1.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 1.9 | Low | CNA (vuldb.com) |
| CVSS 3.1 | 3.3 | Low | CNA (vuldb.com) |
| CVSS 3.1 | 7.8 | High | NVD |
| CVSS 2.0 | 1.7 | Low | CNA (vuldb.com) |
Official description
A vulnerability was determined in berry-lang berry up to 1.1.0. The affected element is the function scan_string of the file src/be_lexer.c. This manipulation causes out-of-bounds read. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Patch name: 7149c59a39ba44feca261b12f06089f265fec176. Applying a patch is the recommended action to fix this issue.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
Third-party and government advisories
- vuldb.com/?id.348014Third Party Advisory, VDB Entry
- vuldb.com/?submit.758872Third Party Advisory, VDB Entry
Technical write-ups (may include proof of concept)
- github.com/berry-lang/berry/issues/509Exploit, Issue Tracking
- github.com/oneafter/0211/blob/main/be/reproExploit
Other references
- github.com/berry-lang/berry/Product
- vuldb.com/?ctiid.348014Permissions Required, VDB Entry
Recent Out-of-bounds Read vulnerabilities
- 9.1 Critical severity
- 7.5 High severity
- 7.1 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.8 High severity
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