Att

By the Year

In 2026 there have been 1 vulnerability in Att with an average score of 8.8 out of ten. Last year, in 2025 Att had 1 security vulnerability published. At the current rates, it appears that the number of vulnerabilities last year and this year may equal out.

Recent Att Security Vulnerabilities

CVE	Date	Vulnerability	Products
CVE-2026-16771	Jul 28, 2026	Arris BGW210700 <=2.7.7 unauth CGIs on /cgi-bin/*.ha In firmware versions 2.7.7 and earlier, the Arris BGW210700 gateway fails to enforce any serverside authentication on its /cgi-bin/*.ha management endpoints, relying solely on clientside CSS/JavaScript gating that can be bypassed by any HTTP client. This allows unauthenticated attackers on the LAN to read sensitive configuration data, modify persistent device settings, or trigger backend diagnostic operations. The issue appears systemic across the CGI handler chain.
CVE-2024-13982	Aug 27, 2025	Arbitrary File Read in rj_get_token.php of SPON IP Network Broadcast System SPON IP Network Broadcast System, a digital audio transmission platform developed by SPON Communications, contains an arbitrary file read vulnerability in the rj_get_token.php endpoint. The flaw arises from insufficient input validation on the jsondata[url] parameter, which allows attackers to perform directory traversal and access sensitive files on the server. An unauthenticated remote attacker can exploit this vulnerability by sending a crafted POST request to read arbitrary files, potentially exposing system configuration, credentials, or internal logic. An affected version range is undefined.	Communication Manager
CVE-2022-26507	Apr 14, 2022	A heap-based buffer overflow exists in XML Decompression DecodeTreeBlock in AT&T Labs Xmill 0.7 A heap-based buffer overflow exists in XML Decompression DecodeTreeBlock in AT&T Labs Xmill 0.7. A crafted input file can lead to remote code execution. This is not the same as any of: CVE-2021-21810, CVE-2021-21811, CVE-2021-21812, CVE-2021-21815, CVE-2021-21825, CVE-2021-21826, CVE-2021-21828, CVE-2021-21829, or CVE-2021-21830. NOTE: This vulnerability only affects products that are no longer supported by the maintainer	Xmill
CVE-2021-21811	Aug 31, 2021	A memory corruption vulnerability exists in the XML-parsing CreateLabelOrAttrib functionality of AT&T Labs Xmill 0.7 A memory corruption vulnerability exists in the XML-parsing CreateLabelOrAttrib functionality of AT&T Labs Xmill 0.7. A specially crafted XML file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.	Xmill
CVE-2021-21826	Aug 20, 2021	A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7 A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. Within `DecodeTreeBlock` which is called during the decompression of an XMI file, a UINT32 is loaded from the file and used as trusted input as the length of a buffer. An attacker can provide a malicious file to trigger this vulnerability.	Xmill
CVE-2021-21827	Aug 20, 2021	A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7 A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. Within `DecodeTreeBlock` which is called during the decompression of an XMI file, a UINT32 is loaded from the file and used as trusted input as the length of a buffer. An attacker can provide a malicious file to trigger this vulnerability.	Xmill
CVE-2021-21828	Aug 20, 2021	A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7 A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. In the default case of DecodeTreeBlock a label is created via CurPath::AddLabel in order to track the label for later reference. An attacker can provide a malicious file to trigger this vulnerability.	Xmill
CVE-2021-21825	Aug 18, 2021	A heap-based buffer overflow vulnerability exists in the XML Decompression PlainTextUncompressor::UncompressItem functionality of AT&T Labs Xmill 0.7 A heap-based buffer overflow vulnerability exists in the XML Decompression PlainTextUncompressor::UncompressItem functionality of AT&T Labs Xmill 0.7. A specially crafted XMI file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability.	Xmill
CVE-2021-21810	Aug 17, 2021	A memory corruption vulnerability exists in the XML-parsing ParseAttribs functionality of AT&T Labs Xmill 0.7 A memory corruption vulnerability exists in the XML-parsing ParseAttribs functionality of AT&T Labs Xmill 0.7. A specially crafted XML file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.	Xmill
CVE-2021-21812	Aug 13, 2021	A stack-based buffer overflow vulnerability exists in the command-line-parsing HandleFileArg functionality of AT&T Labs Xmill 0.7 A stack-based buffer overflow vulnerability exists in the command-line-parsing HandleFileArg functionality of AT&T Labs Xmill 0.7. Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line. filepattern is passed directly to strcpy copying the path provided by the user into a static sized buffer without any length checks resulting in a stack-buffer overflow. An attacker can provide malicious input to trigger these vulnerabilities.	Labs Xmill Xmill
CVE-2021-21813	Aug 13, 2021	Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line. filepattern is passed directly to memcpy copying the path provided by the user into a staticly sized buffer without any length checks resulting in a stack-buffer overflow.	Labs Xmill Xmill
CVE-2021-21814	Aug 13, 2021	Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line. filepattern is passed directly to strlen to determine the ending location of the char* passed in by the user, no checks are done to see if the passed in char* is longer than the staticly sized buffer data is memcpyd into, but after the memcpy a null byte is written to what is assumed to be the end of the buffer to terminate the char*, but without length checks, this null write occurs at an arbitrary offset from the buffer. An attacker can provide malicious input to trigger this vulnerability.	Labs Xmill Xmill
CVE-2021-21815	Aug 13, 2021	A stack-based buffer overflow vulnerability exists in the command-line-parsing HandleFileArg functionality of AT&T Labs' Xmill 0.7 A stack-based buffer overflow vulnerability exists in the command-line-parsing HandleFileArg functionality of AT&T Labs' Xmill 0.7. Within the function HandleFileArg the argument filepattern is under control of the user who passes it in from the command line. filepattern is passed directly to strcpy copying the path provided by the user into a staticly sized buffer without any length checks resulting in a stack-buffer overflow. An attacker can provide malicious input to trigger this vulnerability.	Labs Xmill Xmill
CVE-2021-21829	Aug 13, 2021	A heap-based buffer overflow vulnerability exists in the XML Decompression EnumerationUncompressor::UncompressItem functionality of AT&T Labs Xmill 0.7 A heap-based buffer overflow vulnerability exists in the XML Decompression EnumerationUncompressor::UncompressItem functionality of AT&T Labs Xmill 0.7. A specially crafted XMI file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability.	Labs Xmill Xmill
CVE-2021-21830	Aug 13, 2021	A heap-based buffer overflow vulnerability exists in the XML Decompression LabelDict::Load functionality of AT&T Labs Xmill 0.7 A heap-based buffer overflow vulnerability exists in the XML Decompression LabelDict::Load functionality of AT&T Labs Xmill 0.7. A specially crafted XMI file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability.	Labs Xmill Xmill
CVE-2020-22650	Jul 19, 2021	A memory leak vulnerability in sim-organizer.c of AlienVault Ossim v5 causes a denial of service (DOS) A memory leak vulnerability in sim-organizer.c of AlienVault Ossim v5 causes a denial of service (DOS) via a system crash triggered by the occurrence of a large number of alarm events.	Alienvault Ossim
CVE-2013-7286	Feb 12, 2020	MobileIron VSP < 5.9.1 and Sentry < 5.0 has a weak password obfuscation algorithm MobileIron VSP < 5.9.1 and Sentry < 5.0 has a weak password obfuscation algorithm	Mobileiron Sentry Mobileiron Virtual Smartphone Platform