Security readout for executives and security teams
Plain-English summary
CVE-2022-40055 is a critical login protection weakness reported in GX Group GPON ONT Titanium 2122A firmware T2122-V1.26EXL. An attacker can attempt repeated logins and may escalate privileges if protections are insufficient. Treat exposed device management interfaces as urgent risk.
Executive priority
Prioritize this for perimeter and customer-premises network equipment because compromise could affect confidentiality, integrity, and availability. The highest urgency applies to devices with exposed management interfaces or weak administrative credentials.
Technical view
The CVE describes CWE-307: improper restriction of excessive authentication attempts at the login page. The CVSS 3.1 score is 9.8, with network access, low complexity, no privileges, and no user interaction required. Public metadata names Titanium 2122A T2122-V1.26EXL, but affected CPE/vendor fields are incomplete.
Likely exposure
Exposure is most likely where GX Group GPON ONT Titanium 2122A devices running T2122-V1.26EXL have reachable login or administrative interfaces, especially from untrusted networks. The source bundle does not provide complete affected-product metadata.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. It includes a public researcher reference and states the issue involves privilege escalation through brute force at the login page. Do not assume exploitation is occurring without separate evidence.
Researcher notes
Evidence is limited to the CVE record, CVE List entry, and one public reference. The affected array is not normalized, and the bundle does not name a patch. Validate scope directly against device model, firmware, exposure, and vendor or ISP advisories.
Mitigation direction
- Inventory GX Group Titanium 2122A devices and firmware versions.
- Remove administrative login exposure from the internet.
- Restrict management access to trusted networks or VPN only.
- Use strong unique administrative credentials where supported.
- Check vendor or ISP guidance for fixed firmware or mitigations.
- Monitor for repeated failed logins and suspicious admin access.
Validation and detection
- Confirm whether any Titanium 2122A device runs T2122-V1.26EXL.
- Verify management interfaces are not internet-reachable.
- Review authentication logs for repeated failures or unusual success patterns.
- Confirm rate limiting or lockout controls are enabled if available.
- Document compensating controls where vendor fixes are unavailable.
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-307: 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-2022-40055 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://blog.alphathreat.in/index.php?post/2022/10/01/Achieving-CVE-2022-40055CVE 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.
Improper Restriction of Excessive Authentication Attempts
Improper Restriction of Excessive Authentication Attempts represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.