Security readout for executives and security teams
Plain-English summary
CVE-2025-22916 is a critical stack overflow in RE11S v1.11. A network-accessible, unauthenticated attack is rated possible by CVSS, with potential full confidentiality, integrity, and availability impact. Public sources do not state active exploitation or a vendor patch.
Executive priority
Prioritize identifying and isolating affected devices. The vulnerability is critical and remotely reachable by CVSS, but public sources do not confirm exploitation or a patch. Business urgency is highest for internet-exposed or unmanaged devices.
Technical view
The flaw is reported in the pppUserName parameter handled by the formPPPoESetup function. It is classified as CWE-120 and scored CVSS 3.1 9.8: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The CVE record lists limited product metadata, so asset identification may require manual firmware checks.
Likely exposure
Exposure is most likely where RE11S v1.11 devices are deployed and their management or PPPoE setup functionality is reachable over a network. The CVE data does not provide CPEs, broader version ranges, or deployment conditions.
Exploitation context
The CVE is not listed as KEV in the provided data, and no cited source confirms active exploitation. A public GitHub reference exists, indicating technical details may be publicly available. Treat internet-exposed devices as urgent until vendor guidance is confirmed.
Researcher notes
Evidence is sparse: the CVE names RE11S v1.11 and the vulnerable parameter/function, but affected vendor/product metadata is marked n/a. Avoid assuming other models or versions are affected without vendor confirmation or validated firmware analysis.
Mitigation direction
- Check Edimax or device vendor guidance for firmware updates or advisories.
- Restrict device management access to trusted administrative networks only.
- Disable remote administration if it is not required.
- Remove internet exposure for RE11S management interfaces.
- Consider replacement if no supported fixed firmware is available.
Validation and detection
- Inventory environments for RE11S devices running firmware v1.11.
- Confirm firmware versions through approved administrative methods.
- Identify whether management interfaces are reachable from untrusted networks.
- Review device logs for crashes, resets, or unexpected PPPoE changes.
- Monitor CVE and vendor pages for updated remediation information.
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-120: 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-2025-22916 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
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
SSVC decision data
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.edimax.com/edimax/global/CVE reference, mitre
- https://github.com/xyqer1/RE11S_1.11-formPPPoESetup-StackOverflowCVE reference, mitre
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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.