Home/CVE/A Weak Cryptography for Passwords issue was discovered in General Electric (GE) Multilin SR 750 Feeder Protection Relay,
CVE
CVE-2017-7905
A Weak Cryptography for Passwords issue was discovered in General Electric (GE) Multilin SR 750 Feeder Protection Relay,
A Weak Cryptography for Passwords issue was discovered in General Electric (GE) Multilin SR 750 Feeder Protection Relay, firmware versions prior to Version 7.47.
SR 760 Feeder Protection Relay, firmware versions prior to Version 7.47.
SR 469 Motor Protection Relay, firmware versions prior to Version 5.23.
SR 489 Generator Protection Relay, firmware versions prior to Version 4.06.
SR 745 Transformer Protection Relay, firmware versions prior to Version 5.23.
SR 369 Motor Protection Relay, all firmware versions.
Multilin Universal Relay, firmware Version 6.0 and prior versions.
and Multilin URplus (D90, C90, B95), all versions. Ciphertext versions of user passwords were created with a non-random initialization vector leaving them susceptible to dictionary attacks. Ciphertext of user passwords can be obtained from the front LCD panel of affected products and through issued Modbus commands.
CRITICAL · CVSS 9.8
EPSS 0.01281
EPSS exploitation odds1.28% · top 33%
Schedule remediation
- CVSS base score ≥ 7.0
No Sigma yet — build one →
YARA rules0
Look this up elsewhere - one-click external pivots
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How to read a CVE - triage first, then detect and patch
This page is every public fact about CVE-2017-7905, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.
Triage: should I act now? Four signals, and they are not interchangeable:
CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked.
EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal.
CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score.
Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.
How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.
Then what - two workflows:
Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits.
PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.
Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).
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Exploitation momentum
16 days of EPSSdormant
Flat and low - no real exploitation pressure. This reads the direction and speed of EPSS over time, which can move before EPSS itself peaks or before CISA lists it.
EPSS exploitation probability
1.28%
Top 33%odds of exploitation in the next 30 days
CVSS metric silhouette
shape grows toward worst-case
SSVC triage
No SSVC vulnrichment for this CVE. CISA's Vulnrichment program scores newer CVEs (~2024 onwards) plus selected older critical ones. Use the EPSS probability + KEV status to triage instead.
CVSS vector breakdown
Exploitability - how they get in
Attack Vector
Network
Adjacent
Local
Physical
Attack Complexity
Low
High
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Impact - what breaks
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
VECTOR
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLifecycle
- 30 Jun 2017Published to NVD
- 17 Jun 2026Last modified
Every entry is a recorded date - NVD publish/modify, CISA KEV add, public exploit disclosure. No inferred events.
Attack path
Full kill chain
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ATT&CK techniques
2Techniques this CVE enables. Pills with a solid outline are high confidence - named directly in ATT&CK or Nuclei, or human-curated by CTID; the rest are inferred from the weakness type using MITRE's CVE Mapping Methodology and the CWE → CAPEC chain. Broad, generic-weakness guesses are filtered out. A small N× marks a technique that N independent sources agree on.
▤ Build a SIEM detection for these techniques▤
CAPEC attack patterns
12Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.
CAPEC-CAPEC-102 · Session Sidejacking CAPEC-CAPEC-112 · Brute Force CAPEC-CAPEC-192 · Protocol Analysis CAPEC-CAPEC-20 · Encryption Brute Forcing CAPEC-CAPEC-474 · Signature Spoofing by Key Theft CAPEC-CAPEC-485 · Signature Spoofing by Key Recreation CAPEC-CAPEC-50 · Password Recovery Exploitation CAPEC-CAPEC-509 · Kerberoasting CAPEC-CAPEC-55 · Rainbow Table Password Cracking CAPEC-CAPEC-551 · Modify Existing Service CAPEC-CAPEC-555 · Remote Services with Stolen Credentials CAPEC-CAPEC-560 · Use of Known Domain Credentials
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Weakness Classification
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Affected Products & Versions
10ge multilin urplus d90 firmwareall versions
ge multilin urplus c90 firmwareall versions
ge multilin urplus b95 firmwareall versions
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Related CVEs
8CVEs linked to this one by a shared weakness (CWE) or affected product - joins on data already in the engine, with the reason shown per row.
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CRITICAL
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MEDIUM
CVE-2020-14481
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HIGH
CVE-2001-1546
Pathways Homecare 6.5 uses weak encryption for user names and passwords, which a...
1
same CWE-326
HIGH
CVE-2002-1682
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same CWE-326
MEDIUM
CVE-2002-1697
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same CWE-326
HIGH
CVE-2002-1739
Alt-N Technologies Mdaemon 5.0 through 5.0.6 uses a weak encryption algorithm to...
same CWE-326
MEDIUM
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Vendor Advisories
1cisa-csafcisa-csaf-csaf_files-OT-white-2017-icsa-17-117-01b
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References & Sources
2Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.