CVE-2021-46143High· 8.1▾ MidnightPoC availableIn doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 44.6 · likelihood 0.8 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
3.8%
1 GitHub repo (last check)
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
libexpat < 2.4.3active_iq_unified_managerclustered_data_ontaphci_baseboard_management_controller = h610chci_baseboard_management_controller = h610shci_baseboard_management_controller = h615concommand_workflow_automationsolidfire_&_hci_management_nodenessus < 8.15.3nessus >= 10.0.0, < 10.1.1sinema_remote_connect_server < 3.1Upgrade past the affected range:
libexpat 2.4.3nessus 10.1.1sinema_remote_connect_server 3.1Connected by shared product, vendor, weakness, or advisory.
CVE-2022-23990High· 7.5Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
CVE-2022-23852Critical· 9.8Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
CVE-2022-22822Critical· 9.8addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22825High· 8.8lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22826High· 8.8nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22827High· 8.8storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.