Security readout for executives and security teams
Plain-English summary
CVE-2021-34544 is a password exposure issue in Solar-Log 500 before firmware 2.8.2 Build 52. Certain device pages store passwords in cleartext, so anyone who can access the device may read sensitive credentials. The source bundle reports an older vendor fix for some Solar-Log models, but not for several later model families.
Executive priority
Treat this as a targeted credential exposure risk, not a broad internet worm scenario based on current evidence. Prioritize inventory, firmware validation, network restriction, and password rotation for any affected devices.
Technical view
The cited CVE describes cleartext password storage in /export.html, email.html, and sms.html on Solar-Log 500 before 2.8.2 Build 52. The issue may expose stored credentials to a person with device access. The bundle names fix 3.0.0-60 for SL 200, 500, and 1000, and says it does not exist for several other listed models.
Likely exposure
Exposure is most likely where Solar-Log 500 devices are still deployed on firmware before 2.8.2 Build 52, especially if device management pages are reachable by untrusted users or networks.
Exploitation context
The source bundle includes an Exploit-DB reference, but does not provide CISA KEV status or evidence of active exploitation. The CVE description limits impact to someone with access to the device.
Researcher notes
Evidence is limited to the CVE text and listed references. No CVSS, CWE, CPE, or KEV entry is provided in the bundle. Avoid expanding affected products beyond the named Solar-Log models and firmware statements.
Mitigation direction
- Inventory Solar-Log devices and record exact model and firmware versions.
- Upgrade affected SL 200, 500, and 1000 devices to vendor-fixed firmware where available.
- For unsupported listed models, check current vendor guidance before assuming a fix exists.
- Restrict device administration access to trusted management networks only.
- Rotate passwords that may have been stored or exposed in cleartext.
Validation and detection
- Confirm whether any Solar-Log 500 runs firmware before 2.8.2 Build 52.
- Review access controls for /export.html, email.html, and sms.html device pages.
- Check whether exposed credentials are reused on email, SMS, export, or operational systems.
- Document unsupported Solar-Log models separately for compensating controls.
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.
CVE-2021-34544 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.solar-log.com/en/support/firmware/CVE reference
- https://drive.google.com/file/d/1N8Ch1UGNcoocUaPhOe_1mAECOe5kr4pt/view?usp=sharingCVE reference
- https://www.exploit-db.com/exploits/49987CVE reference
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.