A Weak Cryptography for Passwords issue was discovered in General Electric (GE) Multilin SR 750 Feeder Protection Relay, firmware versions p
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.
- Published
- Jun 29, 2017
- Updated
- Jun 16, 2026
- EPSS
- 1.3% · 69th percentile
- CWE
- CWE-261
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Report tools
Action score
39
Monitor
Low priority for now.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.3%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| ge | multilin sr 750 feeder protection relay firmware | cpe:2.3:o:ge:multilin_sr_750_feeder_protection_relay_firmware |
| ge | multilin sr 750 feeder protection relay | cpe:2.3:h:ge:multilin_sr_750_feeder_protection_relay |
| ge | multilin sr 760 feeder protection relay firmware | cpe:2.3:o:ge:multilin_sr_760_feeder_protection_relay_firmware |
| ge | multilin sr 760 feeder protection relay | cpe:2.3:h:ge:multilin_sr_760_feeder_protection_relay |
| ge | multilin sr 469 motor protection relay firmware | cpe:2.3:o:ge:multilin_sr_469_motor_protection_relay_firmware |
| ge | multilin sr 469 motor protection relay | cpe:2.3:h:ge:multilin_sr_469_motor_protection_relay |
| ge | multilin sr 489 generator protection relay firmware | cpe:2.3:o:ge:multilin_sr_489_generator_protection_relay_firmware |
| ge | multilin sr 489 generator protection relay | cpe:2.3:h:ge:multilin_sr_489_generator_protection_relay |
| ge | multilin sr 745 transformer protection relay firmware | cpe:2.3:o:ge:multilin_sr_745_transformer_protection_relay_firmware |
| ge | multilin sr 745 transformer protection relay | cpe:2.3:h:ge:multilin_sr_745_transformer_protection_relay |
| ge | multilin sr 369 motor protection relay firmware | cpe:2.3:o:ge:multilin_sr_369_motor_protection_relay_firmware |
| ge | multilin sr 369 motor protection relay | cpe:2.3:h:ge:multilin_sr_369_motor_protection_relay |
and 8 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- ge multilin sr 369 motor protection relay firmwareall versions
- ge multilin sr 469 motor protection relay firmwareup to 2.90 inclusive
- ge multilin sr 489 generator protection relay firmwareup to 1.53 inclusive
- ge multilin sr 745 transformer protection relay firmwareup to 2.85 inclusive
- ge multilin sr 750 feeder protection relay firmwareup to 5.02 inclusive
- ge multilin sr 760 feeder protection relay firmwareup to 5.02 inclusive
- ge multilin universal relay firmwareup to 6.0 inclusive
- ge multilin urplus b95 firmwareall versions
- ge multilin urplus c90 firmwareall versions
- ge multilin urplus d90 firmwareall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.
n/a GE Multilin SR, UR, and URplus Protective Relays
- GE Multilin SR, UR, and URplus Protective Relaysaffected
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-261 · Weak Encoding for PasswordCVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.