Security readout for executives and security teams
Plain-English summary
CVE-2026-24822 is a critical memory corruption flaw in ttttupup wxhelper, reported in the bundled mongoose.C source module. The CVE says wxhelper versions through 3.9.10.19-v1 are affected. If exposed, the issue could allow severe compromise of confidentiality, integrity, and availability. Public sources do not show active exploitation.
Executive priority
Treat as urgent for any environment running wxhelper in production or on reachable systems. Prioritize inventory, exposure confirmation, and patch planning. Do not assume compromise solely from this CVE; current sources do not substantiate active exploitation.
Technical view
The CVE describes an out-of-bounds write and heap-based buffer overflow, mapped to CWE-122 and CWE-787, in wxhelper src modules involving mongoose.C. CVSS 4.0 is 10.0 with network attack vector, low complexity, no privileges, and no user interaction. A GitHub pull request is listed as the patch reference.
Likely exposure
Organizations using ttttupup wxhelper through 3.9.10.19-v1 may be exposed, especially where the affected component is reachable over a network. The source bundle has inconsistent affected-version metadata, so confirm exposure against vendor project guidance and PR #515.
Exploitation context
No CISA KEV listing is provided, and the cited sources do not claim active exploitation. The CVSS vector indicates a remotely reachable, unauthenticated, low-complexity issue with high impact, which makes timely validation and remediation important.
Researcher notes
Evidence is limited to the CVE record, CVE List data, and GitHub PR #515. The affected field in the bundle appears inconsistent with the narrative version range. Avoid broad product assumptions and validate against the repository’s patch history and release notes.
Mitigation direction
- Review GitHub PR #515 and vendor project guidance for the patch details.
- Upgrade or apply the vendor-provided patch after standard testing.
- If no release is available, ask the vendor/project maintainers for remediation guidance.
- Reduce unnecessary network exposure to wxhelper while remediation is pending.
Validation and detection
- Inventory all wxhelper deployments and record exact versions.
- Identify systems running versions through 3.9.10.19-v1.
- Confirm whether mongoose.C or related src modules are present.
- Check whether affected wxhelper services are network reachable.
- Track remediation status against PR #515 or later vendor releases.
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-122: 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 lookupCWE-787: 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-2026-24822 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
- Critical
- CVSS
- 10 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/AU:Y/R:U/V:D/RE:M/U:Red
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:H/VI:H/VA:H/SC:H/SI:H/SA:H/AU:Y/R:U/V:D/RE:M/U:Red——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
10CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/AU:Y/R:U/V:D/RE:M/U:Red
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/ttttupup/wxhelper/pull/515CVE 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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.