TTPwire Vol. 1 · MITRE ATT&CK·Tagged

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F5 Labs

Looking at the SmarterMail API Vulnerability CVE-2026-24423

2026-03-12 · Read original ↗

ATT&CK techniques detected

10 predictions
T1190Exploit Public-Facing Application
98%
"attackers to run shell commands and to create and write files. smartertools released a patch for the vulnerability on january 15th, 2026, in build 9511. vulncheck filed the cve request on january 22nd, and nvd published it the next day. cisa has added cve - 2026 - 24423 to its kn…"
T1190Exploit Public-Facing Application
96%
"runs, and the exploit is achieved. observed attacks once a researcher discovers a serious vulnerability and publishes a detailed write - up after coordinating disclosure with the vendor, the path to attacker exploitation is typically short. one has all the details needed to repro…"
T1190Exploit Public-Facing Application
81%
"##lization practices to prevent exploitation. cve - 2024 - 4577, an apache php - cgi argument injection vulnerability, has climbed in the rankings. this vulnerability enables attackers to inject malicious arguments into php - cgi scripts. administrators should apply the latest pa…"
T1190Exploit Public-Facing Application
80%
"at the windows c drive root, called “ pwn ”, that will contain the contents of the windows “ dir ” command. this vulnerability appears to allow any shell command to be run. this could easily be weaponized to pull down and run a stager for further malware, modify files that the ap…"
T1587.004Exploits
66%
", 2026. long term targeting trends the bump plot for february 2026 ( see figure 1 ) reveals that cve - 2017 - 9841 continues to dominate as the most exploited vulnerability, with a significant increase in activity compared to the previous month. cve - 2025 - 55182 maintains its p…"
T1588.006Vulnerabilities
57%
"this specific case, outbound filtering would have prevented the api from contacting the attacker controlled hub server and stopped the attack in its tracks. finally, and obviously, maintaining good hygiene, monitoring for vendor updates, and patching quickly when updates are avai…"
T1190Exploit Public-Facing Application
52%
"occurred on february 17th, 2026. the last observed event was on february 22nd, 2026, when the ip suddenly went quiet, only to return on march 4th, 2026, but scanning for a completely different issue – scanning for credential files associated with cve - 2026 - 20128, a vulnerabili…"
T1498Network Denial of Service
48%
"service to prevent the impact of ddos on your organization. - use a waf or similar tool to detect and stop web exploits. - monitor anomalous outbound traffic to detect devices in your environment that are participating in ddos attacks."
T1190Exploit Public-Facing Application
45%
"sized business, from the individual proprietor to large corporations and enterprise organizations. ” smartermail has about 30, 000 instances appearing in shodan. io, 1 with the majority in the usa followed distantly by malaysia, although since this vulnerability has been known fo…"
T1588.006Vulnerabilities
33%
", 2026. long term targeting trends the bump plot for february 2026 ( see figure 1 ) reveals that cve - 2017 - 9841 continues to dominate as the most exploited vulnerability, with a significant increase in activity compared to the previous month. cve - 2025 - 55182 maintains its p…"

Summary

Sensor Intel Series: February 2026 CVE Trends