Security readout for executives and security teams
Plain-English summary
This vulnerability can make a SUBNET SubSTATION Server 2 Telegyr 8979 Master Protocol service crash persistently when it receives an overly long RTU-to-Master message. In an operational technology environment, that can disrupt monitoring or control workflows using this protocol.
Executive priority
Treat this as high priority where the protocol supports critical operations. The main business issue is operational disruption, not confirmed data theft. Prioritize asset identification, vendor-supported patching, and network restriction for reachable systems.
Technical view
CVE-2014-2357 is CWE-20 improper input validation in the GPT library of the Telegyr 8979 Master Protocol application. Sources state versions before SSNET 2.12 HF18808 are affected and a long RTU-to-Master message can cause denial of service through persistent service crash.
Likely exposure
Exposure is likely limited to organizations running SUBNET SubSTATION Server 2 with the Telegyr 8979 Master Protocol application before SSNET 2.12 HF18808. Risk depends on whether untrusted or less-trusted network paths can send protocol traffic to the server.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVSS v2 vector indicates adjacent-network reachability, low attack complexity, and no authentication, but the source bundle only substantiates denial of service through service crash.
Researcher notes
Evidence supports improper input validation and denial of service via long RTU-to-Master message. The CVSS vector lists complete confidentiality, integrity, and availability impacts, but the provided narrative specifically identifies persistent service crash; avoid assuming broader impact without vendor detail.
Mitigation direction
- Confirm whether Telegyr 8979 Master Protocol is deployed in SubSTATION Server 2.
- Upgrade or apply vendor guidance for SSNET 2.12 HF18808 or later.
- Restrict protocol access to trusted operational network segments.
- Monitor affected services for repeated crashes or unexpected restarts.
- Check CISA and SUBNET guidance before making production OT changes.
Validation and detection
- Inventory SubSTATION Server 2 instances and installed hotfix levels.
- Verify whether SSNET 2.12 HF18808 or later is present.
- Review network paths that can reach the Telegyr 8979 Master Protocol service.
- Check logs and monitoring for persistent service crash indicators.
- Validate compensating controls without sending malformed protocol traffic.
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-20: 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-2014-2357 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
- 8.3 (2.0)
- Known Exploited
- No
- Published
Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C
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.
AV:A/AC:L/Au:N/C:C/I:C/A:C6.510Primary CVE scoreVulnerability scoring details
Base CVSS 2.0 score
8.3HighVector: AV:A/AC:L/Au:N/C:C/I:C/A:C
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cisa.gov/news-events/ics-advisories/icsa-14-196-01CVE reference
- https://ics-cert.us-cert.gov/advisories/ICSA-14-196-01CVE reference · x_refsource_MISC, x_transferred
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 Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.