{"id":"CVE-2025-3845","state":"PUBLISHED","title":"markparticle WebServer buffer.cpp HasWritten buffer overflow","description":"A vulnerability was found in markparticle WebServer up to 1.0. It has been declared as critical. Affected by this vulnerability is the function Buffer::HasWritten of the file code/buffer/buffer.cpp. The manipulation of the argument writePos_ leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.","publishedAt":"2025-04-21T22:00:11.230Z","updatedAt":"2025-04-22T02:16:16.536Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","source":"VulDB"},"assigner":"VulDB","products":["markparticle WebServer"],"affected":[{"vendor":"markparticle","product":"WebServer","versions":[{"version":"1.0","status":"affected"}]}],"references":["https://vuldb.com/?id.305773","https://vuldb.com/?ctiid.305773","https://vuldb.com/?submit.556273","https://magnificent-dill-351.notion.site/Arbitrary-Memory-Writing-in-WebServer-1-0-1d1c693918ed80889711ebd44f7f9a31"],"weaknesses":["CWE-120","CWE-119"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/3xxx/CVE-2025-3845.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-3845","state":"PUBLISHED","datePublished":"2025-04-21T22:00:11.230Z","dateUpdated":"2025-04-22T02:16:16.536Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2025-04-21T13:25:07.264Z"},"containers":{"cna":{"title":"markparticle WebServer buffer.cpp HasWritten buffer overflow","descriptions":[{"lang":"en","value":"A vulnerability was found in markparticle WebServer up to 1.0. It has been declared as critical. Affected by this vulnerability is the function Buffer::HasWritten of the file code/buffer/buffer.cpp. The manipulation of the argument writePos_ leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used."},{"lang":"de","value":"In markparticle WebServer bis 1.0 wurde eine kritische Schwachstelle ausgemacht. Dabei geht es um die Funktion Buffer::HasWritten der Datei code/buffer/buffer.cpp. Mittels Manipulieren des Arguments writePos_ mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs kann dabei über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung."}],"affected":[{"vendor":"markparticle","product":"WebServer","versions":[{"version":"1.0","status":"affected"}]}],"references":[{"url":"https://vuldb.com/?id.305773","name":"VDB-305773 | markparticle WebServer buffer.cpp HasWritten buffer overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.305773","name":"VDB-305773 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.556273","name":"Submit #556273 | markparticle WebServer 1.0 Arbitrary Memory Writing","tags":["third-party-advisory"]},{"url":"https://magnificent-dill-351.notion.site/Arbitrary-Memory-Writing-in-WebServer-1-0-1d1c693918ed80889711ebd44f7f9a31","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":7.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":7.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","type":"CWE","lang":"en","description":"Buffer Overflow"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2025-04-21T22:00:11.230Z"},"timeline":[{"time":"2025-04-21T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2025-04-21T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2025-04-21T15:30:18.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"s0l42 (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-22T02:16:04.976957Z","id":"CVE-2025-3845","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-22T02:16:16.536Z"}}]}}}