CVE-2024-57726
CVE-2024-57726 is a security flaw in SimpleHelp, remote-support software IT providers use to manage their customers’ computers. Someone who already has a foothold can use SimpleHelp to take full control of the machine. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 24 Apr 2026, and says ransomware gangs have used it.[1]
SimpleHelp is business software or equipment. Most families won’t have it, but attackers break into it to get inside companies, and from there to what those companies hold about their customers, patients and staff. SimpleHelp has published a fix or advice.
Description
CISA calls it a missing authorization in SimpleHelp SimpleHelp. In its words: “SimpleHelp contains a missing authorization vulnerability that could allow low-privileged technicians to create API keys with excessive permissions. These API keys can be used to escalate privileges to the server admin role.”[1]
The underlying weakness is missing authorization (CWE-862), in MITRE’s list of common software weaknesses.[2]
It scores 9.9 out of 10 on the Common Vulnerability Scoring System, which rates it critical, scored by NVD using CVSS 3.1.[2]
Affected versions
NVD’s record doesn’t list version ranges for it; SimpleHelp’s advisory has them[3]. CISA names the product as SimpleHelp SimpleHelp.
Most families won’t have SimpleHelp; it’s for whoever looks after IT at work.
Exploitation
CISA added it to its catalog of known exploited vulnerabilities on 24 Apr 2026, 464 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 8 May 2026 to fix it.[1] CISA says ransomware gangs have used it.
FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 66%. That’s in the top 1% of the flaws it scores.[4]
CISA assesses it as not automatable: each attack takes some work.
CISA doesn’t say who was attacked, or how.
Fix
SimpleHelp has published a fix or advice.[3] CISA’s required action: “Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.”[1]
- Check whether you use it.SimpleHelp is business software or equipment, so most families won’t have it. If you run a business, or work from home on company equipment, ask whoever looks after your IT.
- Send this page to your IT person.Ask them to confirm it’s fixed, or not in use. CISA gave US government agencies until 8 May 2026 to fix it.
- If it can’t be fixed, take it offline.CISA’s advice when there’s no fix is to stop using the product, or take it off the internet, until there is one.
You can’t fix someone else’s server, but you can watch for what follows a break-in like this: a breach notice, a password reset you didn’t ask for, or a scam message that knows things it shouldn’t. HARD watches for those for you and your family.
Timeline
| Date | Event |
|---|---|
| The flaw is made public in the National Vulnerability Database, with a severity score of 9.9.[2] | |
| CISA adds it to its catalog of flaws known to be used in attacks, noting that ransomware gangs have used it.[1] | |
| CISA’s deadline for US government agencies to fix it.[1] | |
| FIRST puts the odds of it being used in attacks in the next 30 days at 66%.[4] |
See also
Other SimpleHelp flaws
- CVE-2026-48558: authentication bypass ·
- CVE-2024-57728: path traversal ·
- CVE-2024-57727: path traversal ·
Other missing authorization flaws
- CVE-2023-52163, Digiever DS-2105 Pro: missing authorization ·
- CVE-2025-40602, SonicWall SMA1000 appliance: sMA1000 missing authorization ·
- CVE-2025-6205, Dassault Systèmes DELMIA Apriso: missing authorization ·
- CVE-2025-20362, Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense: secure firewall adaptive security (ASA) appliance and secure firewall threat defense (FTD) missing authorization ·
- CVE-2021-3493, Linux Kernel: privilege escalation ·
Added the same day
- CVE-2025-29635, D-Link DIR-823X: command injection ·
- CVE-2024-7399, Samsung MagicINFO 9 Server: path traversal ·
- CVE-2024-57728, SimpleHelp: path traversal ·
Every SimpleHelp flaw on CISA’s list · Everything added in April 2026
References
- ^ Cybersecurity and Infrastructure Security Agency. “SimpleHelp Missing Authorization Vulnerability”. Known Exploited Vulnerabilities Catalog, added 24 Apr 2026.
- ^ National Institute of Standards and Technology. “CVE-2024-57726 Detail”. National Vulnerability Database, published 15 Jan 2025.
- ^ SimpleHelp. Advisories and fixes: simple-help.com.
- ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.664, percentile 99.3, 31 Oct 2026.
- CVE Program. “CVE-2024-57726”. The official CVE record.
This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.