Total
48 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-28090 | 2 Fedoraproject, Torproject | 2 Fedora, Tor | 2026-06-17 | 5.0 MEDIUM | 5.3 MEDIUM |
| Tor before 0.4.5.7 allows a remote attacker to cause Tor directory authorities to exit with an assertion failure, aka TROVE-2021-002. | |||||
| CVE-2021-28089 | 2 Fedoraproject, Torproject | 2 Fedora, Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001. | |||||
| CVE-2020-8516 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 5.3 MEDIUM |
| The daemon in Tor through 0.4.1.8 and 0.4.2.x through 0.4.2.6 does not verify that a rendezvous node is known before attempting to connect to it, which might make it easier for remote attackers to discover circuit information. NOTE: The network team of Tor claims this is an intended behavior and not a vulnerability | |||||
| CVE-2020-15572 | 1 Torproject | 1 Tor | 2026-06-17 | 4.3 MEDIUM | 7.5 HIGH |
| Tor before 0.4.3.6 has an out-of-bounds memory access that allows a remote denial-of-service (crash) attack against Tor instances built to use Mozilla Network Security Services (NSS), aka TROVE-2020-001. | |||||
| CVE-2020-10593 | 2 Opensuse, Torproject | 3 Backports Sle, Leap, Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (memory leak), aka TROVE-2020-004. This occurs in circpad_setup_machine_on_circ because a circuit-padding machine can be negotiated twice on the same circuit. | |||||
| CVE-2020-10592 | 2 Opensuse, Torproject | 3 Backports, Leap, Tor | 2026-06-17 | 7.8 HIGH | 7.5 HIGH |
| Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (CPU consumption), aka TROVE-2020-002. | |||||
| CVE-2019-8955 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler. | |||||
| CVE-2018-0491 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list. | |||||
| CVE-2018-0490 | 2 Debian, Torproject | 2 Debian Linux, Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting. | |||||
| CVE-2017-16541 | 5 Apple, Debian, Linux and 2 more | 10 Macos, Debian Linux, Linux Kernel and 7 more | 2026-06-17 | 4.3 MEDIUM | 6.5 MEDIUM |
| Tor Browser before 7.0.9 on macOS and Linux allows remote attackers to bypass the intended anonymity feature and discover a client IP address via vectors involving a crafted web site that leverages file:// mishandling in Firefox, aka TorMoil. NOTE: Tails is unaffected. | |||||
| CVE-2017-0380 | 1 Torproject | 1 Tor | 2026-06-17 | 4.3 MEDIUM | 5.9 MEDIUM |
| The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11, 0.3.1.x before 0.3.1.7, and 0.3.2.x before 0.3.2.1-alpha, when SafeLogging is disabled, allows attackers to obtain sensitive information by leveraging access to the log files of a hidden service, because uninitialized stack data is included in an error message about construction of an introduction point circuit. | |||||
| CVE-2017-0377 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families. | |||||
| CVE-2017-0376 | 2 Debian, Torproject | 2 Debian Linux, Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the connection_edge_process_relay_cell function via a BEGIN_DIR cell on a rendezvous circuit. | |||||
| CVE-2017-0375 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the relay_send_end_cell_from_edge_ function via a malformed BEGIN cell. | |||||
| CVE-2016-9079 | 5 Debian, Microsoft, Mozilla and 2 more | 11 Debian Linux, Windows, Firefox and 8 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| A use-after-free vulnerability in SVG Animation has been discovered. An exploit built on this vulnerability has been discovered in the wild targeting Firefox and Tor Browser users on Windows. This vulnerability affects Firefox < 50.0.2, Firefox ESR < 45.5.1, and Thunderbird < 45.5.1. | |||||
| CVE-2016-8860 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination, but the implementation of or/buffers.c did not ensure that NUL termination was present, which allows remote attackers to cause a denial of service (client, hidden service, relay, or authority crash) via crafted data. | |||||
| CVE-2016-1254 | 5 Debian, Fedoraproject, Opensuse and 2 more | 6 Debian Linux, Fedora, Leap and 3 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Tor before 0.2.8.12 might allow remote attackers to cause a denial of service (client crash) via a crafted hidden service descriptor. | |||||
| CVE-2015-2929 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| The Hidden Service (HS) client implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote servers to cause a denial of service (assertion failure and application exit) via a malformed HS descriptor. | |||||
| CVE-2015-2928 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors. | |||||
| CVE-2015-2689 | 1 Torproject | 1 Tor | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets. | |||||