Security readout for executives and security teams
Plain-English summary
This flaw affects Realtek rtl819x Jungle SDK web management code and the LevelOne WBR-6013 firmware named in the sources. An already highly privileged network attacker could trigger stack buffer overflows through HTTP requests and potentially run code on the device.
Executive priority
Treat this as a high-priority network device risk if affected routers are present or remotely administered. The privilege requirement lowers broad internet risk, but successful exploitation could give device-level control and affect network trust.
Technical view
CVE-2023-50244 covers two CWE-121 stack-based buffer overflows in boa formIpQoS in Realtek rtl819x Jungle SDK v3.4.11, related to the entry_name request parameter. CVSS 3.1 is 7.2: network-accessible, low complexity, high privileges required, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where LevelOne WBR-6013 firmware RER4_A_v3411b_2T2R_LEV_09_170623 or Realtek rtl819x Jungle SDK v3.4.11-based management firmware is deployed. The CVSS vector requires high privileges, so risk centers on authenticated management access or stolen administrator credentials.
Exploitation context
The sources describe remote code execution from a specially crafted series of HTTP requests. The source bundle does not include CISA KEV status or cited evidence of active exploitation in the wild, so active exploitation should not be assumed.
Researcher notes
Evidence is limited to the CVE bundle and Talos report references. The key technical signals are boa formIpQoS, entry_name parameter handling, stack-based overflow, SDK v3.4.11, and LevelOne WBR-6013 firmware RER4_A_v3411b_2T2R_LEV_09_170623.
Mitigation direction
- Check vendor and Talos guidance for fixed firmware or official mitigations.
- Restrict device HTTP management access to trusted administrative networks only.
- Rotate administrative credentials for exposed or historically exposed devices.
- Replace affected devices if no supported fixed firmware is available.
- Monitor logs for unusual authenticated web management activity.
Validation and detection
- Inventory LevelOne WBR-6013 devices and firmware versions.
- Identify firmware derived from Realtek rtl819x Jungle SDK v3.4.11.
- Confirm management interfaces are not exposed to untrusted networks.
- Review access logs for suspicious authenticated formIpQoS activity.
- Track CVE and vendor advisories for remediation updates.
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-121: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-50244 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
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/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.
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:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.