Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
9 results
Sep 12, 2026Freeciv versions 3.1.0 through 3.2.5 contain an out-of-bounds read vulnerability in sg_load_player_unit() when processing savegame files with invalid unit activCVE-2026-90557 · Other software · freeciv · reported by VulnCheckMedium 6.9
Freeciv versions 3.1.0 through 3.2.5 contain an out-of-bounds read vulnerability in sg_load_player_unit() when processing savegame files with invalid unit activity indices. An attacker can craft a malicious savegame file with an out-of-range activity index that bypasses bounds checking and causes a crash or limited heap memory exposure when loaded.
- Product
- freeciv
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 12, 2026Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixeCVE-2026-90556 · Other software · freeciv · reported by VulnCheckHigh 8.5
Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixed array bound of 64 elements. Attackers can craft malicious savegame files that write past the entries array into adjacent heap-allocated struct fields, potentially corrupting memory when a user or server operator loads the file.
- Product
- freeciv
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 23, 2026Freeciv21 is a free open source, turn-based, empire-building strategy game.CVE-2026-33250 · Other software · longturn · reported by GitHubHigh 7.5
Freeciv21 is a free open source, turn-based, empire-building strategy game. Versions prior to 3.1.1 crash with a stack overflow when receiving specially-crafted packets. A remote attacker can use this to take down any public server. A malicious server can use this to crash the game on the player's machine. Authentication is not needed and, by default, logs do not contain any useful information. All users should upgrade to Freeciv21 version 3.1.1. Running the server behind a firewall can help mitigate the issue for non-public servers. For local games, Freeciv21 restricts connections to the current user and is therefore not affected.
- Product
- freeciv21
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 31, 2022Freeciv before 2.6.7 and before 3.0.3 is prone to a buffer overflow vulnerability in the Modpack Installer utility's handling of the modpack URL.CVE-2022-39047 · Other software · Freeciv · reported by MITREHigh 8.8
Freeciv before 2.6.7 and before 3.0.3 is prone to a buffer overflow vulnerability in the Modpack Installer utility's handling of the modpack URL.
- Product
- Freeciv
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.combugs.debian.org
Jan 23, 2020Freeciv before 2.3.3 allows remote attackers to cause a denial of service via a crafted packet.CVE-2012-6083 · Other software · freeciv · reported by Red HatHigh 7.5
Freeciv before 2.3.3 allows remote attackers to cause a denial of service via a crafted packet.
- Product
- freeciv
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comfreeciv.fandom.com
Dec 30, 2019A denial of service flaw was found in the way the server component of Freeciv before 2.3.4 processed certain packets.CVE-2012-5645 · Other software · freeciv · reported by Red HatHigh 7.5
A denial of service flaw was found in the way the server component of Freeciv before 2.3.4 processed certain packets. A remote attacker could send a specially-crafted packet that, when processed would lead to memory exhaustion or excessive CPU consumption.
- Product
- freeciv
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Jul 8, 2010freeciv 2.2 before 2.2.1 and 2.3 before 2.3.0 allows attackers to read arbitrary files or execute arbitrary commands via a scenario that contains Lua functionalCVE-2010-2445 · Other software · Freeciv · reported by MITREHigh 10
freeciv 2.2 before 2.2.1 and 2.3 before 2.3.0 allows attackers to read arbitrary files or execute arbitrary commands via a scenario that contains Lua functionality, related to the (1) os, (2) io, (3) package, (4) dofile, (5) loadfile, (6) loadlib, (7) module, and (8) require modules or functions.
- Product
- Freeciv
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgna.orgpacketstormsecurity.com
Jul 27, 2006Buffer overflow in Freeciv 2.1.0-beta1 and earlier, and SVN 15 Jul 2006 and earlier, allows remote attackers to cause a denial of service (crash) and possibly eCVE-2006-3913 · Other software · Freeciv · reported by MITREHigh 7.5
Buffer overflow in Freeciv 2.1.0-beta1 and earlier, and SVN 15 Jul 2006 and earlier, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a (1) negative chunk_length or a (2) large chunk->offset value in a PACKET_PLAYER_ATTRIBUTE_CHUNK packet in the generic_handle_player_attribute_chunk function in common/packets.c, and (3) a large packet->length value in the handle_unit_orders function in server/unithand.c.
- Product
- Freeciv
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordaluigi.altervista.orgsecunia.com
Mar 7, 2006packets.c in Freeciv 2.0 before 2.0.8 allows remote attackers to cause a denial of service (server crash) via crafted packets with negative compressed size valuCVE-2006-0047 · Other software · Freeciv · reported by security@debian.orgMedium 5
packets.c in Freeciv 2.0 before 2.0.8 allows remote attackers to cause a denial of service (server crash) via crafted packets with negative compressed size values.
- Product
- Freeciv
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugs.debian.orgsecunia.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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