Vulnerability Name:

CVE-2022-26987 (CCN-226210)

Assigned:2022-03-14
Published:2022-03-14
Updated:2022-05-16
Summary:TP-Link TL-WDR7660 2.0.30, Mercury D196G 20200109_2.0.4, and Fast FAC1900R 20190827_2.0.2 routers have a stack overflow issue in `MmtAtePrase` function. Local users could get remote code execution.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2022-26987

Source: MISC
Type: Vendor Advisory
http://tp-link.com

Source: CCN
Type: Google Drive Web site
TP-Link, Mercury and FAST Router Vulnerability Report

Source: MISC
Type: Exploit, Third Party Advisory
https://drive.google.com/file/d/1SnNoqRlJiBD673UROLwdgg_roMOneVR9/view?usp=sharing

Source: XF
Type: UNKNOWN
tplinkmercuryfast-cve202226987-bo(226210)

Source: MISC
Type: Third Party Advisory
https://github.com/GANGE666

Source: CCN
Type: Fast Web site
Fast

Source: CCN
Type: Mercury Web site
D196G

Source: CCN
Type: TP-Link Web site
TP-Link

Vulnerable Configuration:Configuration 1:
  • cpe:/o:tp-link:tl-wdr7660_firmware:2.0.30:*:*:*:*:*:*:*
  • AND
  • cpe:/h:tp-link:tl-wdr7660:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:tp-link:tl-wdr7661_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:tp-link:tl-wdr7661:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:tp-link:tl-wdr7620_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:tp-link:tl-wdr7620:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:tp-link:tl-wdr5660_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:tp-link:tl-wdr5660:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:mercusys:mercury_d196g_firmware:20200109_2.0.4:*:*:*:*:*:*:*
  • AND
  • cpe:/h:mercusys:mercury_d196g:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:fastcom:fac1900r_firmware:20190827_2.0.2:*:*:*:*:*:*:*
  • AND
  • cpe:/h:fastcom:fac1900r:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    tp-link tl-wdr7660 firmware 2.0.30
    tp-link tl-wdr7660 -
    tp-link tl-wdr7661 firmware -
    tp-link tl-wdr7661 -
    tp-link tl-wdr7620 firmware -
    tp-link tl-wdr7620 -
    tp-link tl-wdr5660 firmware -
    tp-link tl-wdr5660 -
    mercusys mercury d196g firmware 20200109_2.0.4
    mercusys mercury d196g -
    fastcom fac1900r firmware 20190827_2.0.2
    fastcom fac1900r -