{"id":64088,"date":"2025-08-16T04:29:49","date_gmt":"2025-08-16T04:29:49","guid":{"rendered":""},"modified":"2025-09-07T05:20:04","modified_gmt":"2025-09-07T11:20:04","slug":"cve-2025-27128-arbitrary-code-execution-vulnerability-in-openharmony-v5-0-3","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-27128-arbitrary-code-execution-vulnerability-in-openharmony-v5-0-3\/","title":{"rendered":"CVE-2025-27128: Arbitrary Code Execution Vulnerability in OpenHarmony v5.0.3<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The vulnerability, identified as CVE-2025-27128, represents a significant risk to systems running OpenHarmony v5.0.3 and prior versions. It allows a local attacker to execute arbitrary code in tcb through a use-after-free flaw, posing a severe threat to system integrity and data security. This vulnerability is especially concerning for businesses<\/a> and organizations that depend on OpenHarmony for their operations, as a successful exploit can lead to system compromise and data leakage.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-27128
\nSeverity: High (8.4 CVSS Score)
\nAttack Vector: Local
\nPrivileges Required: Low
\nUser Interaction: Required
\nImpact: System compromise or data<\/a> leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

OpenHarmony | v5.0.3 and prior versions<\/a><\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of a use-after-free vulnerability<\/a> in OpenHarmony’s tcb component. An attacker with local access can exploit this vulnerability<\/a> by making the system use memory that has been freed. This allows the attacker to execute arbitrary code<\/a> with the privileges of the user running tcb. The exploit is possible due to inadequate memory<\/a> management within the tcb component.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

An attacker might exploit this vulnerability by executing a shell command<\/a> that triggers the use-after-free vulnerability, allowing them to run arbitrary code. The following pseudocode illustrates this concept:<\/p>\n

# Attacker gains local access\nlogin -u user -p password\n# Attacker triggers use-after-free vulnerability in tcb\ntrigger_use_after_free('tcb')\n# Attacker executes arbitrary code\nexecute_arbitrary_code('payload')<\/code><\/pre>\n
Mitigation Guidance<\/strong><\/p>\n
The most effective way to mitigate this vulnerability is by applying patches provided by the vendor. We strongly recommend all OpenHarmony users update their systems to the latest version<\/a>. For temporary mitigation, users can employ a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to monitor and block potential attacks exploiting this vulnerability<\/a>. However, these measures are not a long-term solution and should only be used until patches can be applied.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The vulnerability, identified as CVE-2025-27128, represents a significant risk to systems running OpenHarmony v5.0.3 and prior versions. It allows a local attacker to execute arbitrary code in tcb through a use-after-free flaw, posing a severe threat to system integrity and data security. This vulnerability is especially concerning for businesses and organizations that depend on […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64088","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t