CVE-2023-31152: Authentication Bypass Using an Alternate Path or Channel
Noroxi assessment
Priority: Monitor (action score 35/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.35% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
- Severity is disputed: the assigning authority (CNA) scores it 4.0, NVD 8.8.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
An Authentication Bypass Using an Alternate Path or Channel vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller (SEL RTAC) Web Interface allows Authentication Bypass. See SEL Service Bulletin dated 2022-11-15 for more details.
- Published
- May 10, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.3% · 29th percentile
- CWE
- CWE-288
Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 8.8
- CNA · SEL
- 4.0
- 4.8 point gap
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check itNoroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| selinc | sel-2241 rtac module firmware | cpe:2.3:o:selinc:sel-2241_rtac_module_firmware |
| selinc | sel-2241 rtac module | cpe:2.3:h:selinc:sel-2241_rtac_module |
| selinc | sel-3350 firmware | cpe:2.3:o:selinc:sel-3350_firmware |
| selinc | sel-3350 | cpe:2.3:h:selinc:sel-3350 |
| selinc | sel-3505 firmware | cpe:2.3:o:selinc:sel-3505_firmware |
| selinc | sel-3505 | cpe:2.3:h:selinc:sel-3505 |
| selinc | sel-3505-3 firmware | cpe:2.3:o:selinc:sel-3505-3_firmware |
| selinc | sel-3505-3 | cpe:2.3:h:selinc:sel-3505-3 |
| selinc | sel-3530 firmware | cpe:2.3:o:selinc:sel-3530_firmware |
| selinc | sel-3530 | cpe:2.3:h:selinc:sel-3530 |
| selinc | sel-3530-4 firmware | cpe:2.3:o:selinc:sel-3530-4_firmware |
| selinc | sel-3530-4 | cpe:2.3:h:selinc:sel-3530-4 |
and 8 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- selinc sel-2241 rtac module firmwarer147-v0 and later · before r150-v2
- selinc sel-3350 firmwarer148-v0 and later · before r150-v2
- selinc sel-3505 firmwarer147-v0 and later · before r150-v2
- selinc sel-3505-3 firmwarer147-v0 and later · before r150-v2
- selinc sel-3530 firmwarer147-v0 and later · before r150-v2
- selinc sel-3530-4 firmwarer147-v0 and later · before r150-v2
- selinc sel-3532 firmwarer147-v0 and later · before r150-v2
- selinc sel-3555 firmwarer147-v0 and later · before r150-v2
- selinc sel-3560e firmwarer147-v0 and later · before r150-v2
- selinc sel-3560s firmwarer147-v0 and later · before r150-v2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (SEL). Independent of NVD's CPE analysis and usually ahead of it.
Schweitzer Engineering Laboratories SEL-2241 RTAC module
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Schweitzer Engineering Laboratories SEL-3350
- R148-V0 and later · before R150-V2affected
- R148-V0 and later · before R149-V4affected
- R148-V0 and later · before R148-V7affected
Schweitzer Engineering Laboratories SEL-3505
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Schweitzer Engineering Laboratories SEL-3505-3
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Schweitzer Engineering Laboratories SEL-3530
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Schweitzer Engineering Laboratories SEL-3530-4
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Schweitzer Engineering Laboratories SEL-3532
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Schweitzer Engineering Laboratories SEL-3555
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Schweitzer Engineering Laboratories SEL-3560E
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Schweitzer Engineering Laboratories SEL-3560S
- R147-V0 and later · before R150-V2affected
- R147-V0 and later · before R149-V4affected
- R147-V0 and later · before R148-V7affected
- R147-V0 and later · before R147-V6affected
Same product
selinc: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-31149Improper Input Validation in Web Interface35Monitor
- CVE-2023-31148Improper Input Validation in Web Interface35Monitor
- CVE-2023-31150Storing Passwords in a Recoverable Format26Monitor
Published before and after this one in the same product
- ← EarlierCVE-2023-2310May 10, 2023 · Channel Accessible by Non-Endpoint21Monitor
- ← EarlierCVE-2023-31151May 10, 2023 · Improper Certificate Validation16Monitor
- Later →CVE-2023-31153May 10, 2023 · Improper Neutralization of Input During Web Page Generation21Monitor
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.
No history yet (it accumulates with the daily EPSS job).
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.
- Andrea Palanca, Nozomi Networksreporter
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
—
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
- CVE-2023-311540 days apartImproper Neutralization of Input During Web Page Generation21Monitor
- CVE-2023-311550 days apartImproper Neutralization of Input During Web Page Generation21Monitor
- CVE-2023-311580 days apartImproper Neutralization of Input During Web Page Generation21Monitor
- CVE-2023-311630 days apartImproper Neutralization of Input During Web Page Generation21Monitor
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.
- A low-privileged account is enough.
- 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-288 · Authentication Bypass Using an Alternate Path or ChannelCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/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)
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Show all references (1 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.