CVE-2023-24503: Electra Central AC unit – Adjacent attacker may cause the unit to load unauthorized FW.

Routine

HIGH 7.5DOWNGRADE

CVE-2023-24503 is a high-severity flaw (CVSS 7.5) affecting smart kit for split ac. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Electra Central AC unit – Adjacent attacker may cause the unit to load unauthorized FW.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Adjacent network
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-494
Published	2023-04-17
Last modified	2026-06-17

Publisher (CNA): Israel National Cyber Directorate · Vendor: electra-air

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-04-17 22:15 UTCPublished CVE record published
2026-06-17 05:39 UTCUpdated Record last modified

electra-air smart kit for split ac DOWNGRADE

Affected: osk201

Fixed in: no fixed release known

Safe to downgrade to: a release before osk201

1. Check installed version

apt-cache policy smart-kit-for-split-ac || rpm -q smart-kit-for-split-ac || smart-kit-for-split-ac --version

2. No fixed release: DOWNGRADE to a release before osk201 (Debian / Ubuntu)

apt-cache madison smart-kit-for-split-ac sudo apt install smart-kit-for-split-ac=<VERSION_BEFORE_osk201> sudo apt-mark hold smart-kit-for-split-ac

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list smart-kit-for-split-ac sudo dnf downgrade smart-kit-for-split-ac-<VERSION_BEFORE_osk201> sudo dnf versionlock add smart-kit-for-split-ac

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2023-24503?

smart kit for split ac: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-24503 being exploited?

CVE-2023-24503 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-2023-24503 affect?

CVE-2023-24503 affects smart kit for split ac. Severity is high (CVSS 7.5). Electra Central AC unit – Adjacent attacker may cause the unit to load unauthorized FW.

How urgent is CVE-2023-24503?

Priority 28/100. High severity

References

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