Security readout for executives and security teams
Plain-English summary
CVE-2026-24818 is a memory read flaw in praydog UEVR’s bundled Lua parser. It matters mainly where UEVR compiles Lua code supplied by untrusted users or sources. The issue affects UEVR before 1.05 and may expose limited data or cause limited availability impact. No public source provided indicates active exploitation.
Executive priority
Treat as a targeted, moderate-priority update. Prioritize faster if UEVR is used with community, plugin, mod, or other untrusted Lua inputs. Otherwise, handle through normal patch management while confirming whether the vulnerable parsing path is reachable.
Technical view
The CVE describes a CWE-125 out-of-bounds read in dependencies/lua/src, associated with lparser.C. CVSS 4.0 score is 6.9. The vulnerable condition is tied to compiling untrusted Lua code. Public data identifies UEVR versions before 1.05 as affected and references a GitHub pull request tagged as a patch.
Likely exposure
Exposure is likely limited to UEVR deployments or builds that include the affected Lua parser and process untrusted Lua input. Systems not using UEVR, not before 1.05, or not compiling untrusted Lua are less likely to be exposed based on the provided sources.
Exploitation context
The sources do not report active exploitation, and the CVE is not listed as KEV in the provided bundle. Exploitation would require reaching the Lua compilation path with crafted untrusted Lua input. The reported impact is read-related memory exposure and limited availability impact, not confirmed code execution.
Researcher notes
Evidence is limited to the CVE record, CVE List data, and the referenced GitHub pull request. The affected-version field in the bundle is sparse, but the description states UEVR before 1.05. No source provided confirms exploit availability or exploitation in the wild.
Mitigation direction
- Upgrade UEVR to 1.05 or later if using an affected version.
- Review the referenced GitHub patch before maintaining custom forks.
- Avoid compiling Lua code from untrusted sources until remediated.
- Monitor praydog UEVR advisories for any updated guidance.
Validation and detection
- Inventory UEVR versions in use across affected environments.
- Confirm whether any deployment compiles user-supplied or third-party Lua code.
- Verify patched source includes the fix referenced in PR 337.
- Document systems below 1.05 for upgrade prioritization.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-125: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-24818 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/S:N/AU:Y/R:U/V:D/RE:L/U:Amber
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/S:N/AU:Y/R:U/V:D/RE:L/U:Amber——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L/S:N/AU:Y/R:U/V:D/RE:L/U:Amber
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/praydog/UEVR/pull/337CVE reference · patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.