CVE-2012-5864: These Sinapsi devices do not check if users that visit pages within the device have properly authenticated

Q: How do I fix CVE-2012-5864?

sinapsi firmware: upgrade to newer than 2.0.2870; esolar duo photovoltaic system monitor: mitigate or apply the listed mitigation; esolar light photovoltaic system monitor: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2012-5864 being exploited?

CVE-2012-5864 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2012-5864 affect?

CVE-2012-5864 affects sinapsi firmware, esolar duo photovoltaic system monitor, esolar light photovoltaic system monitor. Severity is high (CVSS 9.4). These Sinapsi devices do not check if users that visit pages within the device have properly authenticated. By directly visiting the pages within the device, attackers can gain unauthorized access with administrative privileges.

Q: How urgent is CVE-2012-5864?

Priority 61/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference

This week

HIGH 9.4UPGRADEMITIGATEMITIGATE

CVE-2012-5864 is a high-severity flaw (CVSS 9.4) affecting sinapsi firmware, esolar duo photovoltaic system monitor, esolar light photovoltaic system monitor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

These Sinapsi devices do not check if users that visit pages within the device have properly authenticated. By directly visiting the pages within the device, attackers can gain unauthorized access with administrative privileges.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.4 (High)
EPSS exploit chance	4.9% (top 8%)
CISA exploited list	No
Weakness	CWE-287, CWE-264
Published	2012-11-23
Last modified	2026-06-16

Publisher (CNA): ICS-CERT · Vendor: sinapsitech

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-11-23 12:09 UTCPublished CVE record published
2026-06-16 23:47 UTCUpdated Record last modified

sinapsitech sinapsi firmware UPGRADE

Affected: <= 2.0.2870

Fixed in: newer than 2.0.2870

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

sinapsitech esolar duo photovoltaic system monitor MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

sinapsitech esolar light photovoltaic system monitor MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

sinapsitech esolar photovoltaic system monitor MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Ezylog Photovoltaic Management Server - Multiple Vulnerabilities

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2012-5864?

sinapsi firmware: upgrade to newer than 2.0.2870; esolar duo photovoltaic system monitor: mitigate or apply the listed mitigation; esolar light photovoltaic system monitor: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-5864 being exploited?

CVE-2012-5864 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2012-5864 affect?

CVE-2012-5864 affects sinapsi firmware, esolar duo photovoltaic system monitor, esolar light photovoltaic system monitor. Severity is high (CVSS 9.4). These Sinapsi devices do not check if users that visit pages within the device have properly authenticated. By directly visiting the pages within the device, attackers can gain unauthorized access with administrative privileges.

How urgent is CVE-2012-5864?

Priority 61/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2012-5863 HIGH 10.0 UPGRADE MITIGATE These Sinapsi devices do not check for special elements in commands sent to the system
CVE-2012-5862 HIGH 10.0 UPGRADE MITIGATE These Sinapsi devices store hard-coded passwords in the PHP file of the device
CVE-2012-5861 HIGH 7.8 UPGRADE MITIGATE These Sinapsi devices do not check the validity of the data before executing queries

References

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