diff --git a/NEWS b/NEWS
index ee4dcfc207df6..203ba7f3b108a 100644
--- a/NEWS
+++ b/NEWS
@@ -76,6 +76,8 @@ PHP                                                                        NEWS
 - Random:
   . Added Randomizer::getBytesFromString(). (Joshua Rüsweg)
   . Added Randomizer::nextFloat(), ::getFloat(), and IntervalBoundary. (timwolla)
+  . Fix GH-10292 (Made the default value of the first param of srand() and
+    mt_srand() nullable). (kocsismate)
 
 - Reflection:
   . Fix GH-9470 (ReflectionMethod constructor should not find private parent
diff --git a/UPGRADING b/UPGRADING
index 9fdfdb88f9280..7e1e5bf8f56b6 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -85,6 +85,10 @@ PHP 8.3 UPGRADE NOTES
     RFC: https://wiki.php.net/rfc/randomizer_additions
   . Added Randomizer::nextFloat(), ::getFloat(), and IntervalBoundary.
     RFC: https://wiki.php.net/rfc/randomizer_additions
+  . Changed mt_srand() and srand() to not check the number of arguments to
+    determine whether a random seed should be used. Passing null will generate
+    a random seed, 0 will use zero as the seed. The functions are now consistent
+    with Mt19937::__construct().
 
 - Sockets:
   . Added socket_atmark to checks if the socket is OOB marked.
diff --git a/ext/random/random.c b/ext/random/random.c
index cdc98fbf242d7..30ae6c3baa7bc 100644
--- a/ext/random/random.c
+++ b/ext/random/random.c
@@ -675,19 +675,20 @@ PHP_FUNCTION(lcg_value)
 PHP_FUNCTION(mt_srand)
 {
 	zend_long seed = 0;
+	bool seed_is_null = true;
 	zend_long mode = MT_RAND_MT19937;
 	php_random_status *status = RANDOM_G(mt19937);
 	php_random_status_state_mt19937 *state = status->state;
 
 	ZEND_PARSE_PARAMETERS_START(0, 2)
 		Z_PARAM_OPTIONAL
-		Z_PARAM_LONG(seed)
+		Z_PARAM_LONG_OR_NULL(seed, seed_is_null)
 		Z_PARAM_LONG(mode)
 	ZEND_PARSE_PARAMETERS_END();
 
 	state->mode = mode;
 
-	if (ZEND_NUM_ARGS() == 0) {
+	if (seed_is_null) {
 		php_random_mt19937_seed_default(status->state);
 	} else {
 		php_random_algo_mt19937.seed(status, (uint64_t) seed);
diff --git a/ext/random/random.stub.php b/ext/random/random.stub.php
index e87aec3a27ced..d03057d7a6a6e 100644
--- a/ext/random/random.stub.php
+++ b/ext/random/random.stub.php
@@ -16,10 +16,10 @@
 
     function lcg_value(): float {}
 
-    function mt_srand(int $seed = 0, int $mode = MT_RAND_MT19937): void {}
+    function mt_srand(?int $seed = null, int $mode = MT_RAND_MT19937): void {}
 
     /** @alias mt_srand */
-    function srand(int $seed = 0, int $mode = MT_RAND_MT19937): void {}
+    function srand(?int $seed = null, int $mode = MT_RAND_MT19937): void {}
 
     function rand(int $min = UNKNOWN, int $max = UNKNOWN): int {}
 
diff --git a/ext/random/random_arginfo.h b/ext/random/random_arginfo.h
index 5fc34c95aee63..967dd2d2eb290 100644
--- a/ext/random/random_arginfo.h
+++ b/ext/random/random_arginfo.h
@@ -1,11 +1,11 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 7b9594d2eadb778ecec34114b67f2d0ae8bbb58a */
+ * Stub hash: 533dc78162cc1e510f7c87971a6350acd43de1ab */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_lcg_value, 0, 0, IS_DOUBLE, 0)
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_mt_srand, 0, 0, IS_VOID, 0)
-	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, seed, IS_LONG, 0, "0")
+	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, seed, IS_LONG, 1, "null")
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, mode, IS_LONG, 0, "MT_RAND_MT19937")
 ZEND_END_ARG_INFO()