Security readout for executives and security teams
Plain-English summary
CVE-2026-3379 is a critical buffer overflow in Tenda F453 firmware 1.0.0.3. A remote authenticated attacker may be able to compromise the device through the SetIpBind function. Public exploit information is referenced, but CISA KEV is not listed in the provided sources.
Executive priority
Treat as urgent for any exposed Tenda F453 deployment. The business risk is device takeover and network foothold. Prioritize discovery, exposure reduction, and vendor fix verification before broader remediation planning.
Technical view
The flaw affects /goform/SetIpBind, function fromSetIpBind, where manipulation of the page argument can trigger a buffer overflow. VulDB lists CWE-119/CWE-120 and CVSS 2.0 score 9.0 with network access, low complexity, single authentication, and full confidentiality, integrity, and availability impact.
Likely exposure
Organizations are exposed if they operate Tenda F453 devices running firmware 1.0.0.3, especially where the device management interface is reachable by untrusted networks or shared administrators. The sources do not identify other affected firmware versions.
Exploitation context
The source bundle states the exploit has been publicly disclosed and may be used. It does not show CISA KEV listing or confirmed in-the-wild exploitation. CVSS indicates authentication is required, so stolen, default, or shared credentials increase practical risk.
Researcher notes
Evidence is strongest for Tenda F453 firmware 1.0.0.3. The public records cite /goform/SetIpBind and page as the vulnerable input. No official patch, workaround, or vendor advisory is provided in the source bundle.
Mitigation direction
- Identify all Tenda F453 devices and confirm firmware versions.
- Restrict management access to trusted administrative networks only.
- Disable remote administration if not required.
- Check Tenda guidance for updated firmware or official mitigation.
- Replace or isolate affected devices if no vendor fix is available.
- Review and rotate administrator credentials for exposed devices.
Validation and detection
- Inventory edge and branch networks for Tenda F453 devices.
- Verify whether firmware version 1.0.0.3 is installed.
- Confirm management interfaces are not internet-accessible.
- Review device logs for unusual SetIpBind activity, if logs are available.
- Monitor vendor and CVE sources for patch updates.
- Track whether public exploit references change risk posture.
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-119: 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-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-2026-3379 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 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
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
4 official scoresWe 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.
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR810VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R2.85.9VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R2.85.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P——VulDBVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 2.0 score
9CriticalVector: AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineVulDB
Advisory disclosed
- Source timelineVulDB
VulDB entry created
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineVulDB
VulDB entry last update
- 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
- VDB-348264 | Tenda F453 SetIpBind fromSetIpBind buffer overflowCVE reference, VulDB · vdb-entry, technical-description
- VDB-348264 | CTI Indicators (IOB, IOC, IOA)CVE reference, VulDB · signature, permissions-required
- Submit #759626 | Tenda F453 v1.0.0.3 Buffer Access Using Size of Source BufferCVE reference, VulDB · third-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/F453/vul_79/README.mdCVE reference, VulDB · exploit
- https://www.tenda.com.cn/CVE reference, VulDB · product
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 Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
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.