Security readout for executives and security teams
Plain-English summary
CVE-2026-27519 affects Binardat 10G08-0800GSM network switches running firmware V300SP10260209 and earlier. The device uses outdated RC4 encryption with a hard-coded key exposed in client-side JavaScript. Anyone who can reach the management interface may be able to decrypt protected values, weakening confidentiality of switch management data.
Executive priority
Treat as high priority for network infrastructure if this model is deployed, especially if management interfaces are broadly reachable. The main concern is loss of confidentiality around protected management values. Prioritize exposure reduction while checking for official vendor remediation.
Technical view
The vulnerability combines CWE-321 and CWE-327: a static RC4 key is embedded in client-side JavaScript. The CVSS 4.0 score is 8.7, with network access, low complexity, no privileges, and no user interaction required. Reported impact is high confidentiality loss, with no integrity or availability impact stated.
Likely exposure
Exposure is most relevant where Binardat 10G08-0800GSM web management is reachable from untrusted networks. Internet-exposed, shared administrative, or poorly segmented management interfaces increase business risk. Sources do not state whether other Binardat models are affected.
Exploitation context
No CISA KEV listing or provided source indicates active exploitation. The issue is still practical because the key is client-side and static, so the protection can be bypassed by someone with access to the relevant JavaScript and encrypted values.
Researcher notes
Public data identifies the affected device and firmware threshold but does not provide a vendor patch status in the supplied bundle. Avoid assuming broader product impact. Validation should focus on asset presence, firmware level, management-plane exposure, and whether official guidance becomes available.
Mitigation direction
- Identify any Binardat 10G08-0800GSM switches in the environment.
- Check firmware version against V300SP10260209 and earlier.
- Restrict switch web management to trusted management networks only.
- Block internet access to the management interface.
- Review vendor and advisory pages for firmware updates or official guidance.
- Rotate credentials or protected secrets after remediation if exposure is suspected.
Validation and detection
- Inventory switches by model and firmware version.
- Confirm whether web management is reachable from untrusted networks.
- Review device web assets for exposed client-side cryptographic material.
- Check firewall and ACL rules protecting management access.
- Monitor vendor and VulnCheck advisory pages for update details.
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-321: 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-327: 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-2026-27519 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
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.binardat.com/products/8-port-10-gigabit-sfp-managed-switch,-support-1g-sfp-and-10g-sfp-module,-160gbps-bandwidth,-l3-web-managed,-metal-fanless-fiber-binardat-network-switchCVE reference · product
- https://www.vulncheck.com/advisories/binardat-10g08-0800gsm-network-switch-hard-coded-rc4-encryption-keyCVE reference · third-party-advisory
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.
Use of Hard-coded Cryptographic Key
Use of Hard-coded Cryptographic Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Use of a Broken or Risky Cryptographic Algorithm
Use of a Broken or Risky Cryptographic Algorithm represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.