Security readout for executives and security teams
Plain-English summary
A network-accessible buffer overflow can crash affected Tenda AC6 V1.0 firmware when PPTP server configuration handles endIp. Business impact is availability: a vulnerable internet- or LAN-reachable router may be knocked offline. Provided sources do not show data theft, privilege gain, vendor patch details, or active exploitation.
Executive priority
Treat this as a targeted availability risk for exposed branch, home-office, or small-site routers. Prioritize internet-facing or partner-accessible devices first, then internal-only routers. The urgency is high if these devices support critical connectivity.
Technical view
CVE-2022-45649 is a CWE-120 buffer overflow in formSetPPTPServer via endIp, reported for Tenda AC6V1.0 V15.03.05.19. CVSS 3.1 is 7.5: network reachable, low complexity, no privileges or user interaction, unchanged scope, availability high, confidentiality and integrity none. Affected-product metadata is incomplete.
Likely exposure
Exposure is likely limited to Tenda AC6 V1.0 devices running firmware V15.03.05.19, especially where router administration or PPTP server configuration surfaces are reachable from untrusted networks.
Exploitation context
The CVE is not listed as KEV in the provided bundle. The sources support a public vulnerability report, but do not establish active exploitation, weaponized attacks, or a confirmed vendor fix.
Researcher notes
The source bundle names the vulnerable function and parameter but lacks complete CPE metadata, vendor advisory details, and exploit-in-the-wild evidence. Avoid broad product claims beyond Tenda AC6V1.0 V15.03.05.19 unless confirmed from additional vendor data.
Mitigation direction
- Inventory Tenda AC6 V1.0 routers and record firmware versions.
- Check Tenda vendor guidance for fixed firmware or official mitigation.
- Restrict router administration and PPTP configuration access to trusted networks only.
- Disable unnecessary PPTP server functionality where business requirements allow.
- Replace or isolate devices if no supported fixed firmware is available.
Validation and detection
- Confirm whether any router runs AC6 V1.0 firmware V15.03.05.19.
- Review firewall rules for exposed router administration or PPTP configuration paths.
- Check device logs for unexpected reboots, crashes, or configuration changes.
- Verify vendor advisories before marking the vulnerability remediated.
- Retest exposure after firmware updates or network access changes.
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-2022-45649 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.
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:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
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.